signing up on same IP for 1 site - affects all OC sites?

I was wondering...if I signed up on an offercentric site on the same computer as my brother, who has a different address and email, will it affect my status on other offercentric sites? Should I just completely ignore all offercentric sites (since I messed up) and stick to other free sites?

yeah, you've probably already given yourself the mark of death with offercentric, no use wasting more time there. remember, you can't use the same address as someone else who is completing these sites. your brother is probably also in trouble too.