Q 9s 50NL, linecheck

[Quagmiron]

POKERSTARS GAME #13475958936: HOLD'EM NO LIMIT ($0.25/$0.50) - 2007/11/26 - 03:30:17 (ET)
Table 'Galt' 6-max Seat #5 is the button
Seat 2: Grand Beggar ($32.60 in chips)
Seat 3: bantam222 ($116.20 in chips)
Seat 4: dobber888 ($28.15 in chips)
Seat 5: Quagmiron ($78.30 in chips)
Seat 6: birdzai ($42.80 in chips)
birdzai: posts small blind $0.25
Grand Beggar: posts big blind $0.50
*** HOLE CARDS ***
Dealt to Quagmiron [9h Qh]
bantam222: folds
dobber888: folds
Quagmiron: raises $1.50 to $2
birdzai: folds
Grand Beggar: calls $1.50
*** FLOP *** [Jc Th Jh]
Grand Beggar: checks
Quagmiron: bets $3
Grand Beggar: calls $3
*** TURN *** [Jc Th Jh] [As]
Grand Beggar: checks
Quagmiron: bets $6
Grand Beggar: calls $6
*** RIVER *** [Jc Th Jh As] [4s]
Grand Beggar: checks
Quagmiron: bets $13
Grand Beggar: folds
Quagmiron collected $21.20 from pot
Quagmiron: doesn't show hand
*** SUMMARY ***
Total pot $22.25 | Rake $1.05
Board [Jc Th Jh As 4s]
Seat 2: Grand Beggar (big blind) folded on the River
Seat 3: bantam222 folded before Flop (didn't bet)
Seat 4: dobber888 folded before Flop (didn't bet)
Seat 5: Quagmiron (button) collected ($21.20)
Seat 6: birdzai (small blind) folded before Flop

Is this line OK?

[Aceium]

First: get a converter.

Second: I like the double barrel when the ace falls, but when he calls you here you should probably believe that you do not have the best hand. I think that when villan calls you on the turn you have to give up the hand. Position probably won you the pot since you got to see his check on the river.

[Quagmiron]

Why shouldn't he be drawing as well? He check-calls any street.

[Panic__NL]

obvious draw, nice triple barrel. He is not calling 3 barrels with a T, he is not calling with a draw, the only hand I can see him play this passive is TJ. Although he should know you will check a lot of hands behind on the river.