Yeah this is tough. I posted a comment in the original thread and had a really great interaction with someone explaining their thoughts but also just troll comments. It felt like a representation of their whole community: a mix of really passionate people who want to spread a message and left-wing 4chan-esque belligerent trolls. I think that ideally they can let us know (not through their words, rather their actions) whether their community values discussion over "dunking". If the main point of their federation is only to find people to argue with, we should defederate. If they actually want to be involved in good faith interactions, we can individually block users or communities that push it too far.
I really do not understand why people are so pressed about that
My understanding of the situation is:
Ada: whoa I think I saw CSAM
Other Admin: No it's legal so it will stay
Ada: While it is legal, I am uncomfortable having any content that could be mistaken for CSAM on my instance, goodbye
It's not like you can't make an account on plenty of other instances to interact with lemmynsfw if you really wanted to. The majority of the blahaj community here seem totally fine with her decision too, so it's not like some crazy power trip