this would force them to log in using a valid lichess account.
and stop / minimize chat abuse
so would unchecking the chatbox when you play them. take a second if you need to.
Another one of those 'my feelings got hurt, redevelop the site' threads.
While it's not a big deal to do it manually, I would appreciate a "disable chat against anonymous" setting.
only noticed this today :)
imgflip.com/i/1fw1hy