edit: Since people are either willfully or otherwose are missing my point, this is a pro-russia, pro-fascist hate group, therefore we shouldn't give them the platform to spread their shit. this is not about me seeing their community or then causing issues accross other communities, it's about de-platforming fascists.
As much as I think they're at best deluded hippy kids who unashamedly gobble down Kremlin propaganda like it's crack, as long as they're not being a nuisance to communities hosted on your server, is there a real reason to defed?
If they start answering "How do I control an ESCPOS receipt printer through Javascript?" with "Nuke Kyiv", then maybe do so.
Although I do think Lemmy should have the ability to personally block a whole server as well as just users and communities.
Honestly I think the main reason we haven't seen this is because the core devs are also the admins of lemmygrad, and they can predict how most users would use that feature lol
That said, I totally agree, it's a win both for user agency, and avoiding needless defederation at the instance level