I'm not sure if it's content or just functionality. I really would like lemmy to be more Google-able than it currently is as I still don't have a replacement for " reddit" like I did with, well, Reddit.

Also, something that will probably take a lot longer is generating content for older/dead topics. For example, my wife and I are watching The Sopranos for the first time, and I used to love being able to search for old discussion threads on each episode. Since Lemmy is much newer, discussions about these kinds of things may never happen at all unless I create a thread, and even if I do, it's unlikely that it'll see much discussion as it's no longer relevant or interesting, especially as you get into more niche interests and topics.