In a lot of cases, twitter’s model is better. In topic oriented websites (reddit is a good example), it becomes a shithole if you happen to share any interest that hits closer to 100k people. So a math or programming oriented topic is effectively able to moderate by pushing the memes and shitposts to mathmemes or programminghumor, but science gets overrun with shitty bots because of how wide the topic is.

In many other cases, reddit’s model works better too. It just isn’t definitively one or the other.