I'm not a user of this instance so I'm absolutely not going to try to tell you how it should be run, but I am curious. The other instances defederated are ones which have a pretty well-known reputation.

But feddit.nl is the local instance for Dutch users. It seems fairly innocuous. I mainly only know about it because of the notjustbikes community, which is tiny, but excellent, and about a Canadian YouTuber who lives in the Netherlands with a channel of the same name. I'm just curious what happened there to get it defederated from here, and whether perhaps I should look to create a notjustbikes community elsewhere, if it's a problematic instance for some reason.