At the end of the day, it's up to the mods if they let Cryptomus back into the community. Yeah they broke the rules by plagiarizing, but since the ban is on that specific account and not their whole business, maybe they get another shot. If they do return with a new representative, the ban evasion rule would no longer apply, and we would have no way to verify their claim.
I do think they'd be allowed another shot if they come back with a new representative, they could even hire a reputable campaign manager to run their signature campaign in the forum. The problem for them is rebuilding customer trust, once broken, it is hard to fix, though i have seen platforms that started off on a bad note here (one being bestchange), but turned out to be a reputable platform, so Cryptomus exchange has a chance, but not an easy one.
Honestly, if they do come back I think they should be made to get a manager. Should be a condition of their advertising on here. I'm not saying that in hopes of me being hired, I offered to help them for free and they should have taken advantage of the offer. They could have and should have taken an hour and asked me everything they could think of.
Anyways, I doubt it would be made a condition of their return, but I do hope if they do or are able to come back that they have some sense next time.