Standard open I think from UTG with QJs. Villain is an unknown. I have hands on most regs in my game so I assume he is a weaker player. Weaker players tend to 3bet fairly honest in my experience, but QJs is too good to not defend.

Is this check back by villain a viable strategy? What hands would he do this with?

3betting ranges consist mostly of A-high hands, so I decided to start barreling to get him of those hands. I assumed that his checking back range on the flop was unbalanced, so I still have an uncapped range and decided to attack this board.