Having a reason listed would be nice. I picked one off the list that I couldn't figure out from the name alone why it would be banned and decided to take a look and see why. I was apprehensive. What horrors was I about to see?

Couldn't figure out why it was banned from the content alone. I looked it up and found a website that has their defederated instances list and the reasons. I didn't see anything that matched the reason given, but I didn't care enough to keep digging further.

I think the list is shared among a few instances.