Earlier quoted context omitted.
The irony is that I suspect we have fixed it - eg Element X and Matrix 2.0 is a massive step change forwards; https://www.youtube.com/watch?v=gHyHO3xPfQU etc. But I can see why bad experiences in the past would stick.
So what exactly is the status of Element X? I was under the impression it's still in development, lacking some features of the old app, and will fully replace it when it's ready. If I search for Element on app stores I still get the old app first (with millions of installs, vs. tens of thousands with Element X), and https://matrix.org/try-matrix also still points people to the old app. So I'm confused what "past" you…
It doesn’t have threads or spaces yet; threads are underway currently; spaces will follow.
Dendrite on the other hand has been relegated to an experimental server; we didn’t have bandwidth to do both Synapse and Dendrite so focused on improving Synapse instead, which has steadily become less of a resource hog. Guess we should provide dendrite->synapse migration paths.