Earlier quoted context omitted.
The maintainer of the manpages project, Michael Kerrisk, is quite responsive and interested in improvements. I've generally found the maintainers of other software to be receptive to documentation patches, as well.
I'm not sure what this has to do with Kerrisk. Software maintainers just need to simply add examples of using the software they use. They know best how it works, I don't know why this has to be met with so much friction. Like not posting images of your new game/image library. People want examples of stuff.
But they don't necessarily know best what usage patterns work well for people who are not maintainer-level experts.
I see a strong case for having separate texts for documenting the interface (striving for completeness and low redundancy) and introductory teaching. I don't think that I'd like seeing each man page prepended with a wordy ELIF and two pages of trivial examples. And I'm not saying this because I'd not need the ELIF, quite the opposite, I just don't think that it would be wise to mix them.
Having them maintained in one place, passed through the same distribution channels and available on the command line, now that would great of course. The minimum almost-requirement for a crowdsourcing effort for that content could be a contribution licence that is 100% compatible with the real thing, not 99%, not 99.99. Just in case.