Throwing a tantrum about what exactly? They're one of the oldest-running Lemmy instances. Until now they were running a fork based on a pre-Federation version of the codebase.
You believe they did a bunch of work migrating their database only to then negate that work by destroying the community they wanted to Federate with?
The last update to NTFS was in 2004.
The fact that ReFS doesn't even support all the features NTFS does is pathetic.