The federation issues seem to have been fixed by https://github.com/LemmyNet/lemmy/pull/4330
Something I realized on Mastodon years ago (well before the Twitter/X thing) is it quickly doesn’t matter so much to me how many active users a platform has. A platform is good enough if there’s some activity, and I like being there. Lemmy was already something I checked when I saw only a handful of new posts a day.
Anyway, that’s just my perspective. I’m not too concerned about downtrends of active users.
A few more:
I currently play mostly C standard with “Not Even Slinky” 12-56 strings. When I switched from E I was surprised at how easily the guitar tuned, played and intonated on C with these strings. Didn’t even need to adjust the truss rod one bit.
As far as guitars I think it doesn’t really matter as long as you like the feel. You can always change pickups, tunings, strings, FX, amps.
Phew. Finally. I was getting worried.