NL2 KK 3 clubs OTT

This hand in interesting.

I love the 5x raise on his posted blind, it is just unlikely that he has something since he checked on ATC, btw he calls later so he might have a decent hand.

The large cbet on the board is ok. In bluff here 1/2 pot could be enough since he almost always have nothing, but randoms don't looke at the sizes, so when you go for value, go big.

You're right: the lead on the turn seems to be a lot weak. If he has a PP, by raising you're probably getting him to fold, btw the board is really dangerous and his bet is very small so I'm ok with raising 4value.

He simply calls, it's very likely he has a draw, then on the river checking back is a good option. There's not a lot of value to get by thin vbetting since it's unlikely he has some kind of SD value. By betting we don't get better hands to fold (LOL) neither worst hands to call, then... Check back

I decided to raise him and see what happens

That's a HUGE mistake. In poker you should almost never "raise 4 infos": it's terrible, doesn't really have a purpouse.

You raise either in bluff or 4value or you don't raise.

Here you raise since he's probably calling with all the draws and some PPs, so you're raising 4value.

there's certainly at least some merit to betting river (do you think a random fish likes to fold any pair there?)

turn spot is meh, in one hand you often have the best hand, but when you don't then any decent sized raise will leave you with an awkward spot in a bunch of rivers...
not super thrilled but i probably raise bigger ott and ship that specific river when he checks