The only way to bring more sailors to SFOS imho is quality.
Jolla should focus on one (1) of the well known bugs, fix it and immediately publish a new sub-version of SFOS, so that all users can update and immediately profit from the fix.
The waiting time for new updates with a lot of fixes that mostly all really worked fine in my experience is really boring and imho not necessary.
SFOS 4.4.0.72, 4.4.0.75, 4.4.0.79, 4.4.0.84,… every few weeks a new sub-version with more issues fixed. So the community and also ‘main stream customers’ can see any progress much better.