Thank for your support @t0dd, much appreciated!
I think the bus factor in this project is not too high since there are several admins with full access to the GitHub repo for instance and to the forum too. For admins it's also possible to push desktop and CLI releases to CI. So even if I suddenly vanish, the important parts of the project should still be accessible 
Did you know Joplin doesn’t have a Wikipedia article? I plan to fix that. I will update this discourse topic once it is written so I can get help improving it.
That would be great, and I think the app indeed meets Wikipedia's notability criteria, in particular due to the articles in several reliable sources. If you need some links to source the article let me know.