Hardly anyone uses it from what I've seen, and I believe most of the active users are "refugees" from Ruqqus. When Ruqqus started censoring content before it died, users moved to both Votal.net and Discussions.app. Unfortunately, Votal.net literally disappeared overnight, so all we're left with is Discussions, which I personally think is a terrible website. Before that there was really just one guy on Discussions and he mostly just posted loads of depraved hentai.