The Funkwhale music platform is alive and in active development, and they’re working on a feature to filter far-right artists off the network. Some Fediverse self-hosters are divided on letting a third party decide what should be allowed in their library.
I fail to see how it’s even possible for an open source project to dictate what content is acceptable. Also, the entire idea is contrary to rms’ FOSS goals (for any purpose), other than being completely ineffective. I can understand the need for agency and contribution to whatever resistance can be mustered, but this is larping.