I’m saying that “open source” can mean both things. The parent was arguing that it only means the licensing. I’m not arguing that it always means the development model.

> The Wikipedia page you linked to refers to "Open-source software development (OSSD)" which implies that it's a different concept than "open source" by itself

By that logic, “open source licensing” would also imply a different concept than “open source” by itself.

Note that the Wikipedia page for “open-source software” [2] states: “Open-source software is a prominent example of open collaboration, meaning any capable user is able to participate online in development, making the number of possible contributors indefinite”. That would really only be the case in the context of open-source development.

[2] https://en.wikipedia.org/wiki/Open-source_software