lol wut? If I was sockpuppeting would I admit the fact that we're never online at the same time? Plus what's illegal with having two account? (I don't have two [yet] btw)
Nothing really, unless you use said account to evade a ban or to double post without making it look like it.
By creating a new account. With a new email. It's been done. But they always get found out and banned again.
If you get perma-banned, you not supposed to be here. Ever.
A perma-ban is permanent. Hence the name.
not quite. You can just make a second well-behaved account and come back. No one would find out.