4/ Unfortunately, a lot of instances signed up for UFoI because, from a cursory glance, it looks like they have good intentions.
But because they're now associated with UFoI -- even if briefly -- they are now indiscriminately on Fediblock.
This is guilt by association.
And unfortunately, too many instance admins block everything that winds up on Fediblock without investigation.
This isn't being proactive, it's being reactive and lazy.