[BluffTHIS!]

You can't just play squeaky tight against them all the time or you are playing into their strategy of forcing you to make the nuts while they steal a million pots which gives them an effective freeroll to suckout on your good hands. You have to play back at them sometimes and also sometimes check the nuts to them on the end to let them know a check by you isn't always a greenlight to steal.

These are the types of players that you want to be betting very good draws into, because when that draw hits they will frequently raise you with a non-nut hand or when you are freerolling from that point on. And often when you do make a set and bet it on the flop and a non-threatening card comes on the turn on a drawing board, that is a good opportunity to checkraise allin or almost so if you can, because they will usually bet if checked to, especially headsup. You do need to know the frequency with which they will take free cards though so as not to let them draw too cheap very often.