Hey Matlittle. I'd would say it's closer to common theme vs unique spot. I def see it a lot. However, certainly the board texture and player profile can change this.

When you talk about player type, is this mainly a read on weaker mid-stakes regs? Presumably this is the player type most likely to make this kind of river mistake. And the poor flop cbet sizing led you to believe this player fell into this category?

This is a good question. The weaker flop sizing is a clue and helps shapes this deviation, but this one was played at 200NL which players at this level rarely to never find the low end value bets (A9, TT) as I discussed in the hand to complete a balanced B/V ratio.

Hey Sound. Yes it does. I’m not a HU specialist but it’s similar mechanics of the fact IP caps range by declining cbet while OP is uncapped. HU will likely have more strong hands from an absolute basis given wider ranges, but from proportion of range basis it shouldn’t be that much different then 6max.

No. I think for the reasoned outlined on turn, there is way too little value in range making bluff catching much more profitable vs attempting to make V fold overpairs or middling J. Also TT likely interacts with bluffing range far to much given blockers (need max folds in super polar line) and even a hand like JT we would attempt to fold. Nevertheless, it’s all a moot point as calling will make way more money given V overbluffing (IMO).