You might remember this question, which went viral on the network some weeks ago.
After the asker had got many well received answers, (and if I remember correctly, having accepted the answer of JoaoBotello; please confirm, if not, it's not relevant to the point), s/he decided to offer a 100 bounty with the option "Authoritative references needed".
It is well known that a bounty cannot be offered to an answer from self (in the sense that the system won't allow it). Yet, what the OP did was, just a few hours before the bounty expired, to award the bounty to a new answer coming from a new account, which actually has the same name that the original user. Although the owner of the bounty is free to award the bounty to whoever s/he pleases, the quality of the answer is arguably bad, not the least because it is taken from Quora, which you might agree is not an "authoritative reference". This together is pretty decent (albeit not ultimately conclusive) that they answerer and the asker are the same person.
Is this a breach of the rules of the game? If so, do such actions have consequences?
Disclaimer: I confess I bring this up because I am mildly annoyed by the fact that I provided a new answer which aimed to be based in "authoritative references" (and which took some time to do), and yet the bounty went to such a poor answer, provided very likely by the same person, i.e. fraud. Naturally, this is irrelevant to the actual question above, but I prefer to be open on this.