Oh, very nice! And yes, the blue was chosen because it matches with the default Lemmy upvote color.
Startrek.website has banned the user and blocked/purged the communities.
As ValueSubtracted said please report. Reporting alerts startrek.website admins and the admins of the user's home instance. If we notice another instance regularly not cleaning out their trash, we have the option to defederate from them.
Here is our FAQ. What kind of communities are you most interested in? I'd be happy to make some recommendations.
As ValueSubtracted said, as far as we can tell, the problem is on Lemmy.world's side as we are not seeing any major disruptions with content from other instances. But we are looking into options on our end.
EDIT: We've made some adjustments that appear to be closing the gap
EDIE 2: The issue has been resolved
StarTrek.website saw 4 approved registrations in the past day, and we typically get about 1/day too.
Straight jump, no issues that I've noticed thus far.
Tesseract is great!
Defederation is the nuclear option. Until now we had removed any communities we weren't comfortable hosting, and treated users on a case-by-case basis based on how they behaved in our communities, which worked for a while but became untenable.
When we started this project the admin team felt that welcoming outsiders into our (wholesome, sane) Star Trek communities was the net-positive action. But as I said it became too much to handle so we unfortunately had to cut the cord.
I think Beehaw.org is. We're 2/3 as well (now). .ml has some communities/users we've removed, but largely speaking .ml users have not caused any issues on our hosted communities, and we feel exposing them to our (generally awesome) communities is the net-positive here. Honestly .world's (lack of) moderation is more actively an issue for our mods, but since they're so big and we're a niche instance we really can't afford to de-federate from them.