Yes, there is a bug.
On the day in question, you had gained 200 points, but had one answer with a downvote (net rep: 198). The kicker is that you responsibly deleted this answer, which refunded the -2 from the downvote; however, the badge logic doesn't take this refund into account.
It was a known edge case, because a truly thorough check of why a user ...
Concern? Even the FAQ does not tell this, but SO is actually a browser-game for techies and nerds.
That's also why the whole Winter-Bash is so tremendously popular. It's like an long-awaited skin or decoration feature in a MMORPG.
So what should one be concerned about? That it motivates users to use the site? Maybe it's just what we need: To not take ...
The /reputation audit trail shows you totals per day minus deleted posts.
The count towards the Epic and Legendary badges counts days that you reached 200 points without removing deleted posts, I believe.
So if you reached 200+ points on a given day but later a question you answered is removed and losing the rep gained from your answer puts you below 200 ...
I've updated the FAQ, since it doesn't actually describe what the badge does. The badge awards for the sum of votes for that day, meaning bounties are included (they're a vote on the back-end). The mortarboard badge is given for any day in which your net rep was >= 200.
I updated the FAQ to reflect badge description changes coming out in tonight's build:...
It says "on X days", not "in X days".
That is, if you have 50 days where you earned at least 200 reputation on each, you get Epic.
For Legendary, the same goes, only for 150 days.
If it was earning 200 reputation over a period of 50/150 days, then you'd be correct.
My guess would be that the confusion stems from that misunderstanding?
About a month two weeks after joining SO I was serially upvoted twice in a matter of four days (Mar 1 & Mar 4), though I didn't earn the Mortarboard Badge. This actually was REALLY annoying. Being new I initially thought it was awesome then it was reversed and happened again three days later and not knowing the cause I did actually think I might "get in ...
Personally, I think the descriptions should really spell it out loud and clear. This confusion seems to happen all the time.
Mortarboard (bronze) : Earned 200 or more reputation in a single day
Epic (silver) : Earned 200 or more reputation in a single day, 50 times
Legendary (gold) : Earned 200 or more reputation in a single day, 150 times
We cannot forget about the Uncertainty Principle, by Werner Heisenberg, which can be applied here: you cannot observe a phenomenon without interfering with it.
By creating the badges, which is a phenomenon observation, you most certainly interfered with StackOverflow usage, the phenomenon itself.
Personally, I find SO addictive mainly for 2 reasons:
The association bonus does not count for the mortarboard badge, by design. It's not "earned reputation" on that day...not in the same way votes on your content is, I hope we agree there's a huge difference in the source there.
There may be tweaks to the badge in the future as it leaves out some other things that are much more trivial to include now...but I ...
It was too much work to not post it but @Glorfindel beat me by a few minutes.
Here is the query:
(do note this looks at both regular sites AND site meta's. The latter might feel strange because site meta's don't show rep but you still earn the reputation related badges)
-- result table, don't rename and keep the site column
create table #results ( site ...
We've decided to leave the badge as-is for the moment (it's been this way for as long as it's existed, as far as I can tell).
In short: +2 rep from accepts don't count, so you can't game the system up to 200+ rep by saving up your accept votes just for the badge.
As a matter of policy, awarded badges do not get reversed.
The only exception to this rule is fraud. If we are made aware of badges that were awarded fraudulently (sock puppetry, maliciously-intended voting irregularity or other), they will be revoked.
As of May 8, 2011, this is possible for Electorate. Distribution of votes cast (on questions vs. on answers) is now public, so users need only do a little math. For those who find the badge description confusing, there's a handy example chart here.
Congrats! You are one of 350 who got the badge retroactively as result of this fix by Jarrod.
To sum it up:
To fix this, we have decided to ignore all rep changes due to downvotes - whether you cast or receive them, they will no longer deduct from your daily total towards Mortarboard, Epic, and Legendary.
On Feb 6th you got more than 200 rep due to ...
According to this SEDE query, no user on Stack Exchange has more than two legendary badges. (That is surprisingly low, so there could be something wrong with my query).
Those users are (at the moment of posting):
Pekka 웃 (Stack Overflow and Meta Stack Exchange)
Nick Craver (Stack Overflow and Meta Stack Exchange)
Martijn Pieters (Stack Overflow and Meta ...
We have no idea how this happened, I cannot give you an explanation. The badge ran, you got the badge...I can't explain why. It's a very straight-forward query that somehow got your user Id...but I can't replicate the confluence of events that triggered such a thing.
I cleaned up the data (cache has to expire yet), but sorry...after hours and hours of ...
It is not the rarest badge on every site.
Over on Arqade, it has been awarded once, whereas Tenacious and Unsung Hero have never been awarded. There are similar situations with those badges, or Reversal, on other sites as well. Electrical Engineering was mentioned in the comments, and I also spotted it on ELU.
According to this SEDE query, the Illuminator badge is (much) rarer than Legendary on most sites; of course, there are exceptions, but there's just a handful of them. You can edit the query parameters to compare other badges.
The badge is awarded only once per user, not multiple times. All badges that aren't explicitly stated as being awarded multiple times are only awarded once.
As rene said, you already earned the badge on January 11. As such, you can't earn it again even if you meet the criteria again.
If you lose enough reputation gain from an old day, you lose the "reputation cap hit" for that day. Happens a lot to people who see the loss of votes from deletion. It's not free rep, it's gotta come from somewhere, and in this case it's a matter of coming from history rather than any other source.
Yes, you could theoretically game this for Mortarboard ...
The moment you've earned at least 200 reputation from anything (excluding the association bonus) then that day counts towards the badge - the reputation cap has absolutely nothing to do with the badge. Downvotes do not count against you for a day; the badge script ignores all negative events for the day when determining your eligibility. The badge progress ...
Yesterday would have been your 50th day, as on June 26th you have to subtract the 100 association bonus which does not count (according to the big list of badges). I think you're just playing the waiting game for the badge process to run, unless I'm missing something.
It's most likely, although it doesn't usually take this long for it to run. Maybe you're ...
Those badges were already set up that way previously. They were changed away from that. It doesn't make much sense to now go back and make it a requirement on badges again.
The above is actually inaccurate. I've since found Nick Craver's response about this which indicates that the badges never followed the reputation cap but have always just looked for a ...
I just looked over your rep graph and saw only 49 days on which you earned 200 or more reputation from vote-type sources. You're one short.
On March 25, you went over 200 only because of the account association bonus, which isn't a vote and therefore doesn't count for the badge. On April 24, you hit exactly 200, but eight points came from suggested edits to ...
It's in the mail!...after the next build that is. There are a few changes I'm unsure about that aren't mine so not pushing production this morning.
The only badge that was changed to use the new reputation log was Mortarboard, I've just pushed updates to Epic and Legendary as well. These badges will be a bit more lenient than previous because of how we ...