checking is certainly not bad with a wide range. My personal feeling is that villains would bet their nuts(high flushes) here quite a bit with this flop hitting heros range here quite OK(hero should have high rundowns and KK here quite often, and thus prob willing to get it in on flop) and the only strong hand villain could have(a decent amount of the time) is just that, a good flush.
he should want to get value out of 2 pairs etc. He probably would want to committ himself here with weak flushes 2 pairs etc too, way too many scare cards. by checking I feel he only has nuts(fairly strong flush) or not much(blank aces, some rundown combos)
yeah, polarizing = nuts/air.
checking back leaves the potential for a strong line, But im unsure if one can rep sets/etc here, that really isnt what is in his range anyway(villains)
I need to think about this when not so tired
fwiw: i was commenting on villains flop check earlier(heros check obv reveals nothing much as it is in flow), if that was a source of confusion in my post. time to download some conan o brian and sleep.