I hope this addition will help reduce the spam on Discord.
I had a talk with one of these spammers and he explained that he is unblockable because of Firefox Relay.
It takes a bit more effort than that - Discord servers can use IP address, email address, and phone number to blacklist against.
Doesn't discord ask for your phone number?
Many Discord servers are configured to require a validated phone number. It is up to the admins of the servers to decide whether enforcing this requirement is appropriate for their community’s needs and requirements.