Discord hasn't yet obtained approval for their contract from the American Arbitration Association. They're not on the list.[1] Until a company gets on that list, which has a fee, the AAA will refuse to run arbitrations involving contracts specifying AAA arbitration. The AAA does this to prevent companies from adding additional unfavorable terms to arbitration agreements.
At least Discord specified AAA arbitration. They're considered legitimate. There are arbitration services that are much worse. One is a front for a debt collection company.
Seems they can register at the last minute:
>If a business has not registered its consumer clause prior to the filing of a consumer case, the AAA will require that the business registers its clause at that time. I
Right. Not being on that list, though, indicates that nobody actually went to arbitration rather than going to small claims court. Small claims court is always an option with AAA arbitration. Either party can take that route.
At least Discord specified AAA arbitration. They're considered legitimate. There are arbitration services that are much worse. One is a front for a debt collection company.
[1] https://apps.adr.org/ClauseRegistryUI/faces/org/adr/extapps/...