musing has an official discord server which includes an #abuse channel for the abuse reports.
Invite link to the discord server:
The template to create an abuse report (You can find this in the channel.)
3. Age of offense
4.Link to offense
5.Source of original content
The best way to report abuse right now is to join the Musing discord server (https://discord.gg/UD3vGq6), and go to the #abuse channel. Check the pinned message in that channel to see the proper format for reporting abuse.