Yes for me it’s absolutely a viable alternative. It’s still small and that has pros and cons. The overall quality of discourse is high because it’s a fairly hip crowd that has found Lemmy and joined. Feels more like the early days of the social web, before social media shat the bed. But being small has cons too. Some communities just aren’t here, and a lot of the ones here are small and less active. But there’s absolutely a viable base here that can grow over time. I’m glad that the internet figured this out because we were too dependent on Reddit before - it had totally consumed all concepts of online community and that was okay before the enshittification got into high gear. Lemmy from its inception is structurally designed not to go down that path. So spend time here. Share it. Help it grow. Start a niche sub and feed it.