@prettygood @lamp They use Sharkey which removed the "blocked" tab for federation. That would make FBA not see that block.

Your instance is still in the instance info though and shows inaccurate details.
https://blahaj.zone/instance-info/socially.drinkingatmy.computer

If you can fetch a post from them via IEx with Pleroma.Object.Fetcher.fetch_object_from_id("<link to object>"), then I think it's a Sharkey bug, or they don't have enabled signed fetch and blocked you. The latter seems improbable.

I've have this exact problem with the crashing pigeon for months now and netzsphäre has this issue with transfem social.