There’s an example at the top along with the instructions.

This ain’t exactly the Mississippi.

Why do they ban it?

Issue #1551

🏴‍☠🏴‍☠🏴‍☠

Understandable, have a nice day.

You are likely to be eaten by a grue.

🌍👨🏻‍🚀 🔫👨🏽‍🚀

Defederation should only be considered as a last resort. However, based on their comments and behavior, no positive outcomes can be expected.

Pretty self-explanatory. Read the highlighted examples.

We made the decision to preemptively defederate from Hexbear for these reasons. While we understand that not everyone may agree with our decision, we believe it is important to prioritize the best interests of our community.

People are tired of giving air to that crap. At best it’s disingenuous, dumb, and dangerous.

Federation is a privilege. The largest Lemmy instance has a right to decide what they are willing to platform and promote. That is their right, just as it is with every other instance on the Fediverse.