I think a lot of players don't like raising JJ/TTish type hands because they are bad post-flop players. ie. they'll lose moderate-big sized pots with an overcard (overcards) on the board, or they'll get stacked on rag boards. They are used to playing with terrible players and waiting for massive edges to push post-flop on a consistent basis. And then they see in pokertracker that their TT is in the green, and they tell everybody "look at my pokertracker stats, I limp TT in all the time, and look how much money I'm making!!!" And I think to myself, wow, geez, what a surprise, arguably the 5th best hand in holdem is making you money??? Imagine if you played well with it! Ok I'm done. fwiw -sometimes- I'll call/check down TT in the blinds under the right circumstances. Even JJ on occasion, but I think that's usually pretty bad.