Take a look at this play and let me know if I truly did something wrong. I would cut and paste the hand history, but unfortunately I downloaded the email at home and do not have access to it at work. This was a hand played last night on Poker Stars $.50/1 NL tables
I am in late position…button 1 spot to my left. I bought in at $40 and my stack is roughly $70 at this point

DavSimon Dealt - :Ac: :Qc:
5 callers for $1, I raise to $5….four callers.
Flop- rainbow
Checks around to me I bet $5…everyone folds except 1 caller (his stack is roughly $120)
Pot is roughly $32
Turn-
Opponent bets $16
I raise all in – he immediately calls
River- blank
We split the pot and then he proceeds to give me a serious and relentless tongue lashing about feeding the rake.

I understand and agree that there was a good chance he had the A.
At the time he was playing very aggressive and it very much looked like he was representing the straight….there was no risk of flush so he was drawing at a full house, had the straight or was bluffing. Did I breach some sort of etiquette here….I just don’t like passively calling that size bet, if it were a bluff or semi bluff w/ him drawing at a boat, giving him a “free” card could be disastrous. Anyway those are my thought on the matter….what are yours?