I just got a message from Fanfiction.Net and it appears Pyrocons is questioning why he was banned. I suppose that we may need to do an IP check, but it's possible Garchomp/Scizor might have been lying about Pyrocons being an alt just to get innocent users banned. On the other hand, it is possible that the message could just be a tactic to just not face his consequences and that the fanfiction account is also him pretending to be someone else. But here was what the Fanfiction message said.
And the Fanfiction user's name was TheMiscallenousfic.
Of course innocent until proven guilty should be the general practice, but I think it's a good idea to have someone like
@AKM sama or
@DontTalkDT do an IP detection check.