“Using Discord partitions your community on either side of a walled garden, with one side that’s willing to use the proprietary Discord client, and one side that isn’t.”
An open source project that lives on Discord shuts out Tor users, people in sanctioned countries and anyone who won’t run a proprietary client. It also shuts out poor and disabled users, and anyone on an unusual platform. Discord owns the logs, the bots and the moderation rules. You built a free project and parked its community on someone else’s property.