Saying it's not an endorsement is playing semantic games. Join-lemmy.org is a site that promotes Lemmy, and having this instance there is encouraging new users to hop onboard an instance that encourages people to discuss how best to rape children.

They said they’d prefer the horrible people concentrate in their own instances so we can block them easily

Then they need to stop stonewalling and add user controllable instance blocking. I know that some clients have it but they've been rejecting calls to add it to the main lemmy codebase for a long time.

I think it's important to add that the answer in that AMA referred to exploding heads (or maybe a different right-wing instance but something like that) and not this one. I'm sure the Lemmy devs would care a lot more about removing links to a pedo instance than a political one

I don’t have a link, but the lemmy creators (and maintainers of join-lemmy) answered this in a AMA about a month ago. They said they’d prefer the horrible people concentrate in their own instances so we can block them easily rather than have them in our instances. The join lemmy list does not serve as an endorsement, but a catalog of all available instances.

Neither burggit nor comfysnug are shown on the instances page.