Odd line by villain. He can be leading turned Ax, some draws, 2 pairs, sets, you name it.

I don't really mind the call down line since he can have some strong hands and he chose a fairly large sizing. Had he bet closer to half pot I would be raising this nearly always because I think villain would do that with a wider range.

A raise on the turn might be ok though it really sucks if you get shoved on. If you do raise it would probably have to be really small to keep in all his mediocre hands.

I would take the same line.

Villain can do this with missed flush draws and QT, but of course he still has quite a few strong hands as well. He might also just assume that any Ax is good if you're c betting a pair of jacks.

Interesting that Darius would raise a half pot bet on the turn. I always feel that I'm just pushing them off their bluffs too often.