I'm going to mute my friend in a channel on a discord server then call him autistic.
Why would you want to mute him and call him autistic?
I have lost all interest in this person. I was tired of hearing the same old jokes over and over
It's super rude to mute your friend like that. You shouldn't call him names, either. That's an insult to autistic people.
Who cares? I'm just messing around.
Even if you're just messing around, it's not right to mute your friend and call him rude names. You're supposed to respect and be kind to your friends, not treat them badly. If you do that people aren't going to want to be around you very much.