100nl - deep with flush and villain likes his hand

[Illfavor]

3-bet or fold preflop.

As played, raise river.

You missed a lot of value on the turn by not raising there imo.

He's opening a wide enough range and he had a really high cbet % so I felt calling preflop was +EV especially given stack sizes. I'll be able to take a ton of pots away from him on many flops with a bluff raise or have the option of floating other flops with good equity depending on board texture. I felt I could play more hands IP vs him by widening my calling range to exploit his very wide opening range, thus 3betting with the top of my folding range would include weaker hands than normal. My hand still has decent postflop value, but if it were Q7s, I'd be 3betting. If he was a nit I'd 3bet preflop or if he was really good I'd 3bet preflop but he was playing in a fairly obviously exploitable way.

While I generally prefer to have an actual read when doing this, I agree with this analysis. The FE potential is tremendous and such. It's not like it's bad playing vs. ppl with indeterminate ranges...