Thanks to all on the comments regarding previous. I think y'all pretty much covered it. It's a weak play, a dangerous play from the villain's standpoint, but one we need to be on the lookout for.
In that vein, here are a couple other curiously-played hands I was involved in recently. This time, try to guess what the villain is holding based on the action. Answers tomorrow:
1. In the BB, with blinds at 30/60, I see a free flop with QJo, along with 3 limpers, including the SB. Flop is Q72 with two hearts. SB checks and I bet 180 into 240 pot. One limper calls. Turn is a Jack, no heart. Giddyup. I bet 480 into 600 pot. Call. Turn is a King, no heart. I bet 800 into 1560 pot. Call. What does he have?
2. I raise 4x the BB (25/50) from MP with 99. Folds to a limper UTG who calls. Flop is AQ3 rainbow. Checked to me and I bet 150 into 275 pot. Call. Turn is 8, completing the rainbow. Checked to me and I check behind. River is a Jack. Checked to me and I check behind. What does he have? (This one is so mis-played by the villain that nobody might ever get it.)