It depends. If your image is tight, you could always raise here and get respect, or barrel the first street if its a flop you think your opponent knows would hit you.
I probably won't defend with a j3 off... but hands like 6-8 suited, sure.
If its deep in a tourney, probably not as often. Sometimes use the stop n go tactic.
I am not a fan of the defend the blinds concept. I am not going to call a raise with 9-4o just because I'm in the BB. I think you wind up costing yourselves way too many chips playing crappy cards you would not otherwise play.