@[email protected] @[email protected] kbin isn’t a lemmy instance, it’s a lemmy “competitor”
kbin is a software you can install on your server just like you can install lemmy, or mastodon, or pixelfed, etc…
if you want to interact with a post/profile/community/… on another instance, the usual way is to just take the link to the post, and paste it into your instance’s search bar. this’ll bring up the post in your instance where you’re logged in!
that’s what i just did with your comment: i don’t use either lemmy or kbin on my instance, but i saw your comment on beehaw, so i copied the link, pasted it in my akkoma search bar, and was able to reply to the post, even though my instance doesn’t even have support for user groups/communities
@[email protected] @[email protected]
as someone running a fediverse instance: not really… I can “ban” you from my instance, so that people from my instance can’t see your post/follow you/interact with you, or delete specific posts from you, so that they don’t show up on my instance. but i can’t completely remove your account: anyone from any other instance can still see your account and follow you.
if i believe you did something really wrong and should be banned, i’d contact your instance’s admin to take actions against you. if they don’t comply and i believe it’s causing too much issue, i can mute or “defederate” your instance. muting means posts from your instance won’t be visible to people on my instance unless they specifically look up your account by name, and defederation makes it so that my instance pretends yours doesn’t exist, and will refuse to lookup anyone from your instance, or let anyone from your instance follow some of my instance’s people and so on!
hope this helps :3