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6
Yes, I think it is, with some caveats (see below). Basically, it's noise, distracting from the real information in the answer, and it needs to be removed, just like greetings and signatures: Should 'Hi', 'thanks', taglines, and salutations be removed from posts?
@Sonic is right, many people have an aversion to 'necro-posting' based on their ...
4
How could it be verified that the post had actually saved a life? There really is no system in place to verify anything that has happened outside Stack Exchange, much less something that has happened offline.
If one could receive the ultimate badge, a "Medal of Honor", for a post that saved someone's life, it would certainly create a lot of problems with ...
4
Surely a user didn't answer and delete the unregistered account right away
I think they did (an Aviation mod needs to confirm); because accounts with very limited activity will be deleted right away, according to the FAQ:
If you have never posted or voted more than once on your profile, your account will be immediately deleted.
That's a bit ambiguous, ...
2
Well, I have read the answers and some of the comments talking about some exceptional cases but the main reason I think is that up-voting take 15 reputations. In some of the cases questions are asked by new user having just 1 reputations. So, even if they up-vote it won't show up.
However, this is where Stack Overflow comes to the party with a gold badge ...
0
This is already possible if you use the dictation feature of your mobile phone
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