It doesnt really matter what your username is. It is just the name that your points from folding are going to be going to. If its different than your name on here it doesnt matter, even if you are folding for this sites team.
yeah i currently fold under 2 different names, as my sig says: i fold in a team under gibsonnova74, and the rest of my farm folds under chrisbgibson. you can use whatever name you want. just fold away, perferably for team 37726.