I think it depends on what people make of it. Forums existed well before Reddit and Lemmy can scratch that itch. But so far a lot of the discussion has focused on Reddit and if real content doesn’t replace it then Lemmy probably will fade away.

Also, devs can make a difference. If the experience gets better both on web amd mobile then it will help.

I’ve played with Mastadon a bit in the past but not much. I didn’t know you could comment with that account. Interesting…