Yes, but "closed source" does not mean "companies".
Correct. It is a licensing standard. Nothing to do with the organisation of developers be they employees of a company or freelancers working from home in their spare time. Nothing to do with development models. Or trolls. Just the rights granted to users/developers/recipiants/etc of the software.
I believe this is an ideal compromize: The sources are kept together, decisions can be made openly and transparently, the thing can be funded.
Sources kept together and decisions made openly and transparently. Music to my ears. Sounds like you are warming to the idea of open source.
But no need to compromise! You need not stop at the halfway point. Make the full journey to openness!
Actually, this is not at all so different from the "ISO" or "IETF" model I know. It may be a bit slow (especially on the ISO side with all its overhead), but it is workable.
Where is Kolla? This is where he writes something like: Yes, because that's exactly what the Amiga needs. More slow development.
And when they go, the knowledge and source code sometimes go with them. Ope source could preserve that.
Open Source does not preserve knowledge. Documentation does.
Correct. Because Open Source is a licensing standard. You need to write documentation independently of your License and development model. A task not at all prevented by Open (or closed) Source.
But the act of open sourcing software allows people to legally keep copies of the software source code AND documentation. Thus preserving it! And a good programmer keeps good comments with their code to allow others to pickup where they left off. Again, not at all something hindered by Open (or closed) Source. Just simple good developer discipline.
Thus, I strongly believe that the whole thing requires more organization than an open source model could deliver.
Thus, I strongly believe that the whole thing is about organisation (and possibly control) and not about open source.
Nothing you have said is prevented by open source. In fact, you sound quite open yourself in many respects. Keep it up! It gives me hope.