Defender of the Realm hat broken, or just badly worded?

Question

Description of the hat unlock requirement:

at least 5 flags dismissed as helpful and at most 20% of non-disputed flags declined

Does "dismissed" mean something unusual here, or is this hat not unlocking properly? I'm not sure if that means "since winter bash started" or "since your account was created": if the former, I've flagged 8 items so far today, of which 6 were marked "helpful" (the other two are still active; none have been disputed or declined). If the latter, the flag page indicates I've flagged 391 items (plus 6 for spam), of which 1 was declined (which incidentally, I assume that was by accident, given that the question was closed soon after for the reason I flagged it for), 1 was disputed (that one was legitimate), and 21 are still open. That is definitely way under 20%.

So what's up with that unlock?

edit: it appears to be the case (further edit: this has now been confirmed first-hand) that this hat unlock disregards any flags that are the flag equivalent of voting to close. I put forth that if this is intended behavior, well, it shouldn't be (if it's to equalize the playing field for over-3k-rep people, it should just also count votes-to-close. Though granted, I suppose in the scheme of things it really doesn't matter much, as it'll all go away in a couple weeks anyway. But dang it, I want to show off all the flagging I do! :p)

Answer 1

The hat works just fine, at least for me. Do note that hats are applied in batches, it can take a few minutes.

The flags must be marked as helpful, and only new flags since the Winterbash started count. There is evidence that closing flags do not count either, see below.

Without being able to see your flags page, there isn't anything else anyone can say here; I've earned both the Defender and the Conspiracy Theorist hats today, so they do work. The Defender hat is, in fact, my personal favorite:

It appears that not all flags types count, however. Closing flags are the only flag type that users with 3k+ cannot cast (they vote instead), and they are probably not included for this and the Conspiracy Theorist hats. There are plenty of flag types that all users can cast, including Spam, Offensive, Low Quality, Not an Answer and Other.