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I can't think of many times that I've limped and folded to aggression preflop. Possibly when I was just starting out playing poker. That tells me that the villion has a weak streak about him. I picture the villion in this hand to be a little old lady in live games who scares people when she calls, let alone bets.

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Guh. A lot of reasonable players open-limp with weak hands (e.g., deuces UTG) hoping to create implied odds for themselves, only to give up the chase when it's 2SB back to them. It's not that unusual, and you're reading too much into it regardless: TPGK+OESD is too good not to raise at least once in this spot.