Go to Gaiaonline and click "Join now" or anything on the front page.
gaiaonline
You can not
noting
nope, not at all! (:
It is over.
you dont
Lanzer
No legal ones.
no, you can not
GaiaOnline.
Currently there is no option to delete your GaiaOnline account. If you do not want to play GaiaOnline anymore then simply don't sign in.