[kurto]

It might help to know how he got his stack that high. Stealing a lot or showing down good hands.

A lot of aggressive players make huge stacks bluffing or who are willing to put all their money in with a low flush and are up against people who will call them with 2 pair, a straight, etc.

Is he bluffing at every scare card?

Also... regarding the overbet he's making; is this standard for him? Presumeably he's done this before and there's been some showdowns... how strong was his hand?

I'm certainly not folding my hand to a guy that loose. The question is do I reraise. And to answer that, I want to know the answers to my questions above.