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.