Lemmy user names should only allow standard characters
To be clear, some really great community members have these names, but they're everywhere now. And with the right characters you can create some really annoying overlaps: https://github.com/LemmyNet/lemmy/issues/3790
Enough of them floating around now that I'll probably do a PR for my favorite client to filter them out.
Just a heads-up, some folks (and instances) add pronouns as part of the display name. I'm not saying you shouldn't be able to disable display names, but it's a relevant caveat that would pop up later, so I just wanted to make sure you know now.