There is no "Disease that affects the Geminiverse"
I've been over this before, but Gemini continues to expand. There is no "disease" or "stagnation", and it is tiresome to read claims that there's some kind of problem.
Gemini is just an information system. It lets people write, transport, render and link to text documents reasonably easily. It has a few other key characteristics. But so long as people are able to do the whole reading and writing thing, it's a success.
No-one said it had to have a particular level of adoption or, heaven forbid, "engagement" in order to be accounted successful. It's bordering on a straw-man argument to suggest otherwise.
freezr has cited network externalities as, I guess, a barrier to adoption, and that certainly is true and a very powerful effect. But it's wrong to say, as he/she does
Apparently the "network effect" is very powerful and there is nothing that you can do against it.
... of course you can go against it, and sometimes people do, and mostly they fail and sometimes they win. There's a good book on this topic and related topics, called "Information Rules" by Hal Varian and Carl Shapiro. It describes an "evolution" vs "revolution" strategic choice for people who want to fight the status quo. The CD replaced the cassette tape, after all, and there are countless other examples where network effects have been overcome.
Surely the unjustified, and extended, absence of Solderpunk exposed the project to a series of traumas that were never fully recovered.
The project was already basically finished when Solderpunk entirely properly decided to do something else with his time.
I guess I have to repeat my point that Gemini does not provide "positional goods" in the same way as other projects, and people wanting to be the centre of something need to create their own thing. Solderpunk has shown how it can be done.