@flit
I do agree with @gamingonlinux that making on onboarding experience better is great! However I share the doubt that this is the right way forward. Resorting to a default mega-instance seems like a lackluster solution that's gonna backfire. I think one should've taken the problems – and I think we all know there are problems with it, just disagree on the degree – more seriously and cooked up something more well thought-through.
We don't need to pretend everything needs some majority vote, if the problems are well-known. A "vote" is a discussion-ender, it's fruitful to move on with something if all agree on voting, but it's a silencer in the face of changes that are needed.
Indeed there are a lot of problems with mastodon.social, ironically even hampering adoption of Fediverse proper because of bad/overwhelmed mods, racism, etc. – which would've been helped by "simply" using another instance. I think there are better solutions than a default instance.
As, btw, I think there are better solutions than simply adding QTs – they were left out for good reason and I think the solution space is actually big enough to find something that's no QT but fulfilling the same needs w/o, hopefully, the downsides. But alas, we gave up on that one as well.