What you can do is once you have cracked/scammed an account, copy their e-mail address.
Then try to log into their e-mail using the same pass, since lots of people use the same password.
If you are successful, change the password and recoveries of their e-mail.
They then won't be able to get into their Gaia account OR e-mail.
If they have a linked e-mail to their e-mail, then just use the same pass for that one also.
Now you have their Gaia account, e-mail, and other e-mail if they had one.
I'm pretty sure this is illegal though.