Fishhooks?

Villain was new at the table, about 5 hands in:
The limp/$5.50 OOP call made me worry when he bet out it looked fishy. Was this too weak of a fold?

Hold'em NL ($0.25/$0.50)
Seat 6 is the button.
Seat 2: bam19 ($64.60 in chips)
Seat 3: Archshay ($15.40 in chips)
Seat 4: Buckeejit ($54.54 in chips)
Seat 5: pulpa111 ($47 in chips)
Seat 6: HERO ($49.25 in chips)
bam19: posts small blind $0.25
Archshay: posts big blind $0.50
----- HOLE CARDS -----
dealt to HERO [Jc Js]
Buckeejit: calls $0.50
pulpa111: raises to $2
HERO: raises to $6
bam19: folds
Archshay: folds
Buckeejit: calls $5.50
pulpa111: folds
----- FLOP ----- [9h Th 6c]
Buckeejit: bets $6
HERO: calls $6
----- TURN ----- [9h Th 6c][2d]
Buckeejit: bets $18
HERO: folds

nh sir. If he has AT here, you're getting the money back soon anyway.

Anyone raise this flop?

I play it the same. A set (or 9T) is very likely with the way he played the hand. I dont think raising his flop lead here is really bad, but I think calling under these circumstances is better.