Beginner mistake (tilting spewtard)

Beginners: Don't try this at home.

How to tilt me...

I sit down at a table where villain (BB) has a stack of 400-450bb and over 15 hands he has stats of 100/75/8 or so. He raises PF with 7-9bb every time, calls seemingly every time, Bets 7-10bb on every street. Seems to not look at his cards. He has a lot of people calling once or twice then folding to him and he generally calls other peoples bets or raises them if he thinks they are too puny. I have been in one hand previously with him where he calls a 30bb bet on the river with K6o (made hand - K-high). In 15 hands he's thrown away 200bb - 2 full buyins. He does seem to take a little time to call large bets and has folded to medium sized bets once or twice.

$0.05/$0.1 No Limit Holdem
9 players
Converted at weaktight.com

Stacks:
UTG ($12.51)
UTG+1 ($11.67)
MP1 ($9.90)
MP2 ($9.65)
Hero ($13.77)
CO ($23.92)
BTN ($9.90)
SB ($1.90)
BB ($23.83)

Pre-flop: ($0.15, 9 players) Hero is MP3 :tc: :th:
3 folds, MP2 calls $0.1, Hero raises to $0.5, 3 folds, BB calls $0.4, MP2 calls $0.4

Flop: :7c: :9h: :qh: ($1.55, 3 players)
BB bets $0.9, 1 fold, Hero raises to $3, BB calls $2.1
When he bets his range is any two cards - literally. I say, ok so pay me bitch and raise him. (Equity around 74%)

Turn: :2h: ($7.55, 2 players)
BB bets $0.7, Hero goes all-in $10.27, BB calls $9.57
Paydirt I scream. I look at the 2h and think that even if he has a Q which seems very long odds indeed I could come from behind with a 9-outer.

Problem: On flop and river I was thinking that he's proved he's capable of folding crap and I couldn't quite decide if I wanted him to fold to me or call me AI when I thought I was ahead. What I didn't do was adjust my perception of how far I was ahead based on his call.

Someone who plays every hand aggressively can luck out and get to 400-450bb through variance. But it's a lot more likely to happen if this person generally only choses to play really big pots if he has the goods. He could easily push weak hands out of any pot, and fold to any strength when he doesn't have the goods.

The call on the flop should have caused alarm bells to go off. He can fold - I know it - I was even telling it to myself at the time. The fact that he doesn't fold to my raise on the flop signals strength. No two ways about it. He has 99, 77, over pair, top pair, 2 pair, flush draw, straight draw or a combination hand (7 paired with a flush draw). With that villain range my hand has a 30% equity (number somewhat questionable) and the AI is probably not as much -EV as I thought at first, but it is certainly a play made for the wrong reasons.