I can't help feeling that checking here is basically telling him we've got a hand. He's aggro post flop but folding 70% to cbet, so what, he's raising the other 30%?

b/f the flop is going to run at a profit if he's folding 70%, so we can bet air all day long against this guy, slowing down if he continues.

But if he has hit the flop, are we expecting him to call or raise? Ok maybe hands that can't take much heat are better checked, such as 2nd pair or even TPGK, if only to see another card, but anything we're happy to stack off with should be bet, because he's aggro and will likely raise most of his 30% of hands he's not folding. Sure, checking might encourage spazz, but that might just be a cheeky punt at the turn before shutting down. We've probably lost value.

I don't like checking the nuts here against an aggro donk. You can pass him rope by betting...