Microsoft is going to start issuing permanent online bans across all platforms (except for Java/dungeons) if banned by a moderator on a server or violating their community guidelines when sending messages, even on a private realm. This will kill Minecraft Online, this will kill Minecraft: Bedrock Edition, and with the forced migration to a Microsoft Account from your Mojang account for Java Edition, it could potentially kill that in the future as well. We have to stop this, to preserve our community and to preserve this game.

Note: There is no way to get yourself unbanned, even through support. These bans are permanent