I play a friendly home game every Friday. We play 0.05/0.10 NLH with a $40 max buy in so 400BB. We have one player that as the night goes on likes to play his hands blind. He'll declare "no limping" and raise $2 - $3.5 blind preflop. He tends to only look at his cards if he gets reraised or if someone bets $3+ postflop. If he does look at his cards he plays a very fit or fold strategy post flop as he'll only continue with a pair, flush draw, oesd or better and folds otherwise.

I profit a lot off this player by 3 betting preflop with most of my opening range. A lot of the time he folds out right and if he continues my opening range is a lot stronger than his calling range. I estimate he has a VPIP of around 50% when he's not playing blind. and close to 80% when he does.

I'm wondering if anyone can advise how to play against this unique strategy. Should I widen my range as he can have any 2 cards? Should I ever bluff postflop? Should I be betting my bottom pairs or just let him bet blindly postflop until the river? Should I always bluff the flop and shut down if he continues? Should I 3 bet every hand I play with him preflop?

Lastly we are usually the last 2 at the poker table playing HU at which point he goes from blind preflop raising to all in blind preflop. For this is it correct to call with the top 50% of cards? Or is it some more obscure number like top 33%? In any case he usually does it quite often and so is it better more me just to wait for a good spot like AT+ 88+?

It's not hard to have an edge over a player that plays blind but I'd really like to fully abuse this guy for his stupidity. So any discussion to better improve my strategy against his is appreciated.