It would be so much better if I could just block an instance called “Lemmy.sports”.

Ironically, I’m part of a sports-only instance. I’m not sure if you can block an instance as a user, but hopefully one day we can emerge as a predominant sports instance and you can just block us, thereby eliminating most sports-related posts from your feed. Good luck with this issue, and sorry in advance for all the individual sport/team posts you will see from us in the future.