AQo, bad autobet?

[DontRaisePlz]

PokerStars 0.50/1.00 Hold'em (9 handed) converter

Preflop: Hero is BB with A[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, MP1 calls, MP2 calls, <font color="#666666">1 fold</font>, CO calls, Button calls, SB completes, <font color="#CC3333">Hero raises</font>, UTG+1 calls, MP1 calls, MP2 calls, CO calls, Button calls, SB calls.

Flop: (14 SB) 9[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(7 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, UTG+1 folds, MP1 calls, MP2 folds, CO calls, Button folds, SB calls.

Turn: (9 BB) 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, <font color="#CC3333">MP1 bets</font>, CO calls, SB folds, Hero calls.

River: (12 BB) 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, MP1 checks, CO checks.

Final Pot: 12 BB

I never see 7 way action on the flop in .5/1 full tables, so this was a bit of a throwback hand. I think the ace of diamonds and a huge pot is what told me to bet this, but I'm not sure. Comments on turn are appreciated too, I think that was close to a break even call.

[Im Just A Bill]

Flop bet is ok with 2 overs and a backdoor nut flush. You didn't get raised and got a few people out. With the blank on the turn and someone else betting out now, I would figure that at least one of the other opponents has gotten a piece. Without the turn being a diamond, I probably would have given up there.