I am not certain of the reason for the ban. Majority of bans are for pliagarism or ban evasion.
There is no possibility to recreate your account. (you can only appeal, by making a single post in meta as you have done. )
And any of your alts discovered posting outside meta would also be banned. As the ban is in the user and includes any account he/she holds.

May I suggest that reason for ban be added to permaban as it is for a temporary ban? This would reduce such inquiries (some users would surely still ask though)