I've recently seen 2-3 people at 200NL bet 2-3bb preflop almost every hand and every time they have at least a 1.5xbb stack usually 3+bb. I was contemplating this earlier today. They are basically adding an ante. You'll watch tight players fold every time and you'll loosen up the table. They usually follow it up with a full pot cbet and back down when they meet agression and miss. It seems easily exploitable but they just keep building their stack if they are smart about it because people are willing to really test them with just one pair. And that's when they actually do have a hand.

Worth trying out for fun?

How do you combat these guys? Just play normal or do you adjust?