I've heard and read about protecting your hand, but I don't really understand it (apart from I suppose thinning the field PF - 3betting QQ, for example, is a good idea, especially against more than one opponent).
Anyway, let's say we are up against someone who completed the SB and we checked with 32o. Flop comes K23ssh. I've heard someone saying they're not married to their bottom 2 pair but they'll bet to 'protect' their hand.
Surely anyone who has a OESD or a FD will continue. Betting here doesn't protect your hand, surely it simply charges to draw. That is to say it's a vbet with a need to reassess at the turn and river.
I suppose my question is, when is a protection bet NOT a vbet?