I think the problem is, Lemmy's greatest strength (Fediverse) is also the thing that's going to hold back a mass migration at this point in time. Onboarding with Reddit is a breeze. You make an account, it asks you what your interests are and location based communities and you're off to the races. Every community on reddit is immediately available to interact with.

When I came to lemmy I almost gave up on my initial onboarding and I'm a pretty tech savvy guy. I didn't know where to go to start. There's all these different lemmy sites and I didn't know if they were the same thing or different and if I was signing up to the right one. Account creation failed initially without giving an error message (I'll chalk that one up to just a bug). There didn't seem to be any NSFW communities until I figured out the instance thing. You're told you can use your account across instances but when you go to another instance via it's domain you can't interact with it, you have to get to another instance through your instance which is confusing as a newcomer. Any one of these issues is a falling off point for a less inclined visitor.

I'm not saying the fediverse thing is bad but the unfortunate byproduct of it is a difficult experience for newcomers, especially when you compare it to Reddit. I'm hoping growth in the community will bring in talent to solve for this initial experience or possibly apps which can handle all of this more seamlessly.