Third-party clients will often fail to act like the first-party one, causing them to be detected as userbots and banned automatically, among many other things.

Third-party clients will often fail to act like the first-party one, causing them to be detected as userbots and banned automatically, among many other things. Modding the official client is usually looked past, as long as it doesn't touch the websocket/REST APIs in any way, but custom clients are verboten. Obligatory "I don't work at Discord, just actively develop against their API" goes here.