The poster was 17, so it seems moot. Not to mention there's no apology or anything like that, so this seems like a purely hypothetical debate.
As with all acts of stupidity, if they actually did learn anything from it they should just lay low for a year or two and hope everyone forgets their face, and then they can re-introduce themselves like any newcomer would.
Historically, there's been little mercy on ASC for fuckups that come running back with a half hearted apology hoping they'll be greeted back into the fold with open arms.
ASC, it would seem, gives no quarter.
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