Hand 1 he should have raised flop, but they dont. They have a set, thats the nuts!! Now they needz to trapz joo!! Sure he let you catch up, but you werent folding. Money was going in however he played. Bet bigger on river. He's a calling station so let him call big amounts.

AJo isnt great in BB, agreed.

Hand 3 is pretty standard all around. Min-raise utg is meh, but thats what they do with small PPs, they play the strength of their hand.