turn decision, bottom set - 50nl

I feel like we should flat turn. I think he's really strong and doesn't have backdoor draws.

I think this is definitely a flat. If villain is bad enough to c/c broadway clubs here, he is bad enough to do it with broadway diamonds and hearts too and will probably bet the turn like this with some frequency. If villain is betting here with clubs, he only has 7 outs and would probably fire his missed draw on the river a decent amount too, especially if he spikes a pair. If he has a bizarre overpair (most likely holding IMO), the value you lose by not letting him fire at least a blocking bet on the river is huge.

When I see a crazy bad line like this, its usually AA or some spazzy bluff. Both of which you should flat against.

You say your range for raising is JJ+ and sets, do you even have AA/KK here? If so, do you raise them? What about TT? How far off am I if I say that the worst hand you would like to raise for value here is 22? If not, what hands are you looking to get value from with lets say QQ? Would you ever bluff raise here?

He looks very polarized when he CC your strong flop bet and donk the turn. By flatting I think you under-rep your hand and at the same time protect your flatting range. If he is bluffing let him, even if he hit a backdoor draw I think the value from when he misses and bluffs river more then enough compensate for when he gets there.

While balance aint a big deal at 50nl, I think that why this might not be such a bad play by villain with AA is that:
A) players will stab with anything on the flop.
B) players will raise there strong 2P+ on the turn while hardly ever bluff.
C) players will call down with there "ok" hands like 99-QQ or worse.

All in all, I think calling is way better.
//Me like this hand, thx for posting.