I mean Lemmy shares a lot of the same issues as Reddit even if it's decentralized. I think Lemmy as a technology is better than Reddit because it's more privacy focused, but most people don't care about any of this. People put up with Reddit's shortcomings because it has a massive community that is always active and fills every niche. Reddit's daily active userbase is over 73 million. That's hard to replicate in general, but I don't see Lemmy getting anywhere near that mainstream. I see it as a more stable and active version of Voat, but still a niche platform nonetheless.