Flopping a Monster draw

[shemp]

15/30 7-handed. on line. Loose but not clueless UTG limps, Wacko Maniacal GoofBall raises in midposition (hereinafter WMGB), loose and horrible Ace player and Ace chaser coldcalls, fishy BB calls with JhTh (that would be me).

Flop is Q94 with two hearts. Checked to WMGB who bets, loose and horrible coldcalls, I *CALL*, and UTG calls.

Turn is offsuit 3. WMGB bets and I am the lone caller.

River is an 8, so I made it, and check-raise the river.

WTF was I thinking.

On the river, I felt he would bet any hand if checked to, although there was also a significant chance he would raise any pair and with hands that couldn't call. I have no clue what is best, but I hoped he had a pair and felt this was the surest way to get two bets, although it almost completely takes 3-bets out of the question unless WMGB has a huge hand.

On the turn, a semi-bluff bet or c/r seemed pointless. I was seriously contemplating a call on the river with J-high, although I probably I wouldn't -- that may sound crazy, but the guy could have just about anything.

The flop: Well, I should love to see 3-bets go in from 4 players with a monster draw, but I don't know how many players are going to come along. I wanted to see what others would do, I wasn't excited to be heads up with maniac, as there was no deceptive value in pounding as a slight dog heads up here, if it were the case, and if a slight favorite, I'm looking for a better spot. so I checked instead of taking the bet 3-bet line to avoid exactly that situation. When it came back, I called with the hope of UTG calling.

Basically, I left a ton of money on the table on the flop.

Thoughts?