Of course, but presumably if you're launching something you want people to adopt it so spend some time on documentation.

Don't presume that. People release OSS for all sorts of reasons, and you cannot assume anything. You also are not owed or entitled anything. If a maintainer wants to do something, they will. If they don't, then they won't, even if that thing might net them more users. It's not for you to decide, or even gripe about.