If you’re an instance admin, yes.
If you mean that you personally just don’t want to see content from that instance, then no, but shortly. kbin has had the ability for users to block seeing content from particular instances for a while; lemmy has not, but I understand that it’s in the next release.
corbin@infosec.pub 11 months ago
Yes, you can domain block threads.net just like any other mastodon/misskey/whatever server.