Yes but user goals are different in a link aggregator paradigm built around threaded comments vs microblogging. With microblogging, you care about your pseudonym, your reputation, and you're at the mercy of an admin. If you say something you don't like, good luck moving if they don't want you to, if your server even supports it.
Contrast that with threaded discussions, where most people don't even pay attention to the username of the person they're responding to and people aren't after a reputation. It's nothing to create a new account and jump right back in.
My gripe with Lemmy is not that, or that it's based on AP (which I don't really like, but it serves it's purpose), my gripe is that Lemmy is designed to be an entire Reddit replacement, for each and every server. With a federated architecture this just isn't necessary. Each community can host their own server, every server doesn't need an endless supply of communities, Reddit does because it is one site. What you wind up with is a low signal to noise ratio, a bunch of dead communities, duplicate communities, it just wasn't a well thought out design decision. It was ambitious before thought was put into it.