1. When people play micro stakes, they justify all sorts of actions via sweeping assumptions like “its micro so I thought villain can’t have X/wouldn’t be capable of Y”. First off they’re playing the same stakes as you so I wouldn’t be too harsh on them! Second, at micro stakes the pool is more exploitable. You should be looking for the common exploits at a player by player level and taking advantage, not applying generalisations which support your “gut”/mistakes
2. Regardless of stakes, your initial thoughts should include ranges, equity and pot odds
3. Don’t raise 5x BB with 6s OOP. Try to keep the pot small and if you make your set then rinse your opponent
4. Villain is facing a someone betting into 2 players with a 5x BB preflop raiser still to act. He wants to get paid and maybe thinks there’s a good chance one of you has a pocket pair, top pair or over cards (maybe a straight draw but unlikely) and is willing to get it in which is exactly what happened (captain hindsight
). Maybe go back and look at your history and see if you have a tendency to not be willing to let go of PPs or marginal made hands?