@TheGoodSpace I appreciate your effort, but right off the bat, I've found a bunch of very superficial entries.
i.e. firefish.social (formerly calckey.social)'s lead developer recently made waves for faking screenshots of DMs, defaming people to frame them for allegedly insulting him, and by revelation of his own screenshots being in a groupchat called "degen callout" (degeneratives, nazi vocab).
blacksun.social should be fairly obvious: the black sun is a hardcore neonazi symbol.
froth.social: we have them down as "racism", and "these alleged nazis sound reasonable and polite" is hardly a reason because that's kind of what nazis do to when they want to call their enemies liars
ihatebeinga.live: being the lead dev of akkoma, a software hugely popular with neonazi instances, is hardly reason to not be on a blocklist. In fact, I'd say some 95% of akkoma instances I see on the daily are nazi instances.
kbin.social: with the recent reddit disaster, tons of redditors flooded onto kbin and lemmy instances, and many brought their hateful subreddits with them, onto understaffed instances overwhelmed with moderating that. and mastodon.social is the flagship instance of Mastodon too, and it too is infamous for lacking moderation (it's also on your list)
kolektiva.social: in my experience, they've regularly failed to block COVID denial, and I know of at least one instance of them failing/refusing to delete kiwifarms-sourced doxxes.
raspberrypi.social: they recently (half year ago) hired a british spy cop for their org, proudly announced him as "this guy used to build surveillance devices with raspbis", and then blocked and insulted all criticism and went to the media to cry shitstorm, and they got rightfully boycotted for it. that is good reason to defederate them.
bbc: need I even say it? The single most notable racism and transphobia print in the UK?
Now none of that is to take sides here, I'm not familiar with "The Bad Space" beyond a superficial look at the site, but if you want to criticise, your own list can't be full of holes. Certainly, there's entries on your list I can't explain, but there are many I can, and that overall gives the impression that your criticism may be ill-informed and broadly unaware of many past and not-so-recent incidents that probably informed these decisions to block.
Again, I'm not familiar/qualified enough to speak on the situation as a whole, I'm not taking sides here (I don't even know who the sides are!) or saying anyone is 100% right or wrong, this is purely supplemental feedback about your list and some entries on it.