[$] Lessons from the death and rebirth of Thunderbird

Ryan Sipes told the audience during his keynote at
https://events.gnome.org/event/209/
 mail client 
"probably shouldn't still be alive". Thunderbird, however, is not only
alive—it is arguably in better shape than ever
before. According to Sipes, the project's turnaround is a result of
governance, storytelling, and learning to be comfortable asking users
for money. He would also like it quite a bit if Linux distributions stopped
turning off telemetry.

https://lwn.net/Articles/982610/