Honestly, I hope Lemmy becomes a viable reddit alternative as well. I'm not sure if I will be going back to Reddit after the blackout, except perhaps to look at reference links or reviews on subs like r/askhistorians, r/askamechanic or r/patientgamers.
One of the things I've noticed since browsing Lemmy is how much more organic the content and discussion is here, and how astroturfed the communities on Reddit have become. I haven't noticed any brand names, ragebait, or anything like that, and it's so refreshing.