He said that he would send me the BTC in 24 hrs after receiving the gift card...no, I did not receive any BTC from him.
Why would he impersonate someone else like that and then turn around to sell the gift card on these forums for best offer? A scammer unless he was really intending to take a loss here which I doubt.
Yes, that impersonation of a trusted nick on IRC (e.g., using a similar nick by appending a character to the end) is happening a lot.
If you haven't asked to be whitelisted you can try that. Then you could move this thread to the Scam Accusations board.
Was this through IRC? Do you by chance still have the IRC chat log for that?
Incidentally the IRC bot gribble will PM to anyone joining #bitcoin-otc with this message:
#bitcoin-otc: Watch out for fraudsters! Always check authentication with the ident command before trading, otherwise you could be dealing with an impostor. If in doubt, ask in channel. More info:
http://bit.ly/YCGOI3