

you don’t get paid
Actually, it is about commercial value obtained from using GPL’d S/W (I don’t know why any volunteer would have wanted to donate S/W to corporates!). But some of the GPL’y projects atleast had self-interested funding of developers (by, e.g. Redhat). OSS’y S/W has had much less of that.
If you look at steps like the OIN, they tried to share IP amongst corporates rather than costs, so corporates do play along when they have to. Nothing like that happened for GPL’y or OSS’y S/W. LLM training is probably a licensing violation, and also the biggest possible leeching.
Sure, a “normie” using GPL’d S/W is on point, because volunteers donated their skills for that purpose. That part of the commons worked.

That can be an option, sometimes. The term “Social network” effectively means a server presents the entire conversation, which Delta Chat on its own may not have. Does its group chat view even have threading?
The closest would be Secure Scuttlebutt or similar, where peers have the full conversation (with its storage and redundancy implications).