raise preflop early position with low/mid s.c .or p.p.?

[obi_wang]

i dont do this, but this one dude i play at b&m does this, and he wins some monster pots this way. the $3/6 game that this is at is very loose/passive, but preflop, players will call two cold easy, so most pots are still multiway. and the possible hands that might get folded out cuz of raise may be the hands with low/med cards that you'll be playing.

if you don't hit the flop, you can check/fold, so position doesnt necessarily play a huge factor, does it? by doing this, he really opens up his preflop raising range, so very hard to put on a hand. in loose/passive games where they'll call the 2bet cold enough to really make the pots huge, can this be +ev?