Blocklists of instances with problematic content were widely shared, effectively shutting those instances out of the network; most successful was the #FediBlock hashtag, started by Black users such as artist Marcia X. For a time, this was highly effective in protecting some users, and even led to the fediverse becoming a haven for queer, leftist, and neurodivergent communities. Unfortunately, racism on the Fediverse persists to this day, even on some otherwise well-moderated instances.