Re-steal on low stakes

[EroTheMad]

Today i was playing 5$/45 on ftp. On FT i was 1 of 6. The guy on my left was raising like hell. He min-raised like 4 hands continously. When i was on bb, he raised again everyone folded and i re-raised him all in with K4s. I had like 10bb due to the structure of tourney. And he instacalled and showed AA. I know now, this guy doesn't care about position so i thought his UTG raise may not be a strong hand. And he raised pre-flop four times in a row so i thought this was a good point to re-steal. He was raping the table and didn't encounter any resistance. So i RRAI.

The thing i want to say is we have low FE(maybe zero), and it's hard to put these players on a hand range pre-flop(ok now maybe A2o+,A2s+,22+,KTo+KTs+,QTo+,QTs+) is it wrong to try to re-steal on low stakes? I tried stop n go's ,re-steals but they keep calling evertime. And that cost me lots of tourneys.