a anti raid discord bot, which prevents you from being raided by selfbots
You can install the Raidbot by clicking the follwing link and add it to your guild. From the time being added to your server, he will prevent every selfbot message.
https://discordapp.com/oauth2/authorize?client_id=353518760499478529&scope=bot&permissions=74758
Feel free to open an Issue or using the PR to improve the bot by yourself.