Try it and tell us what happens!
/s
Honestly in my experience messing with databases in production is not a good idea. I recommend making a test instance to see what happens. The alternative is to backup the database and try it. My guess is that it will work, and there shouldn’t be a huge problem from it, but there might be some strange problems that pop up from it.
I heard about the fediverse before, but never made an account until a few days ago. It is kinda cool how Mastodon, Lemmy, and Kbin can interconnect somewhat, but it does not feel like a fleshed out feature to me yet. There are still too many bugs when interfacing with other parts of the fediverse.
I like how maluable it feels right now. I really feel like if I dedicate a bit of time and effort I can make changes to and improve things. Or at the least break off and do my own thing that interacts with the fediverse.
I don’t like how spread out and small all the communities feel. I think piracy has 5 different communities at this point. I am also torn on not having at least a centralized login. I kinda trust sh.itjust.works with my account, but there is little assurance that the instance, and my account on it, won’t just disappear or attempt to do something malicious with my email and password.
I want Lemmy to take off and I think it has potential, but I also believe it will take at least another year before I am completely satisfied with it.