Source: https://stallman.org/discord.html

wym

"Discord may demand to talk with you by phone if it decides you are suspicious — for instance, if you contact it via Tor.

If I understand right, if you use Discord regularly via Tor you would need to carry that phone with you all the time. A burner phone, one what you possess only for a short time, would not be allowed to do the job.

Thus, whoever uses Discord gets tracked either by the Discord server (and anyone looking at where the packets are coming from) or by the phone.

Don't yield to this -- just tell Discord to take a flying leap!"

make art and trouble till the fix the flower...