crazyearner seems to be likely hacked/sold (1year gap). Also those posts aren't merit worthy. Very likely case of merit abuse or merit trading.
Yep, all of what you wrote is spot-on. This is the second thread I've posted in today in which there's been obvious merit abuse (or at least misuse). I don't usually even bother replying, but it looks like crazyearner and the member from the other thread don't even care that it's obvious what they're doing. Hopefully this isn't going to become more of a problem than it already is.The sender however is possibly selling merits, possibly an alt of the receiver, or just a total idiot for meriting a proof of authentification post.
If the sending account is hacked or sold, then there's a very high probability that the new owner is selling the sMerits on it or sending them to an alt account. Either way, both accounts are definitely connected IMO. Nobody gives merit to a bounty post just to be generous. 
