98s flush against river raise

We do not hold the nut flush, so we should onsider a fold here.

Yes, this raise looks very strong on this board. Would fold here too

You bet 3 streets and your bets are not small. Villains raise seems super strong and I see very few bluffs in his range. You don't have the nut flush and board is paired, I think folding is the right move.

I like the way it is played. You triple barrelled, so it is pretty strong line. Your opponent seems unknown and he raises river on the paired board, I guess it is an obvious fold.

IMO villain is a fish. I don't think he is aware that triple barreling is a strong move or anything. But even being a fish, he is unknown.

Unless I had seen him doing something stupid in those 7 hands, I would probably fold here too, but I think that villain could very well do what he did with 3x or a smaller flush.

Or better flush...

There is no way that villain wouldn't understand that betting every street is quite strong. That would be like standing next to a fire and feeling the heat but not understanding that it burns.

Generally I wouldn't assume that villain is raising the river with trips or (worse) flush on such a board, so folding seems right.

I agree. It takes big balls to turn a hand into a 3-street float bluff, and there is no way a normal okay-ish player will do that enough to justify a call.