Flop c-bet% is a nifty HUD stat. If a villain cbets around 30%, then he's only doing it when he makes a hand. It's probably not a good idea to raise his cbets unless you're ahead of his range.

Against villains that cbet 60% or more, it becomes interesting. There are surely some who can be exploited profitably by raising with any two. I think you need a more specific read to know whether or not this is the case.