On Everest I think a lot of players have hacked the client so that the 'bet pot' button reads 'bluff!'. I've found it profitable to assume potsized river bet means bluff until shown otherwise. What I dont like about the above is that the most likely OESD did get there, so it reduces the amount of busted draws in his range. Tbh I expect to see 89 more than a set there.

Do you play on stars? Pot sized bets mean a lot more there than on FT or Everest or other sites with a bet pot button.