I know I am not a member, not sure I should be answering this, though I used to be tech support for a different site.

In regards to using one account to hack on and one to play legit on, if the one you hack on gets banned, it will be more than likely an ip ban as well compromising your legit account.

Though this being said, doesn't mean you can't do this. Just make sure you don't go off like a mad man aimbotting every guy you see, keep it on the low down, since people will fairfight you, much less if you don't do that.

Hope I helped,

Source: Experienced hacker + ex. tech support from another site