Good question, but everything depends...
When I play tournaments (
freerolls, microstakes and lowstakes), I notice that I really need to exploit their ultra (bad) polarized range perception, they just can't read our movements, they can't understand if we are balancing our open/bet/call ranges.
Otherwise, in lowstakes cash games, people usually play way more better: they can read our movements and they have some range perception, so you can't just exploit them, because they are trying to do the same with you, so, in this modality, you need to be more careful...