How many devs did you convince to move?
Don’t know, obviously, but we can celebrate those who have: Known F/LOSS Development of F-Droid Apps
How many apps did you uninstall because of these reasons?
First step is acknowledging and identifying the problems. Unfortunately, F-Droid makes it take longer than it should, by ignoring it, not tagging it, or even dev site labeling links.
From this old list: Why use Github, why not use Savannah, others, or self-host?
Uninstalled: AntennaPod, DejaVu, Flym AND Feeder, Phyphox, Planisphere, Wifi Analyzer, QR Scanner,
Changed from Vanilla Music to VLC
Not yet: Editor by BilltheFarmer, Etar, Orbot, OsmAnd, Simple Draw, Simple Gallery, Survival Manual,
Next up: Change from Conversations to Monocles
Thanks for asking. I also separated free dev and non free dev apps on my home screen, as a reminder to look for replacements.
F-Droid alternative is on the list now.
We can go on in circles, yet here we are trying to do our best of this situation.
F-Droid was “clean” when it started on Gitorious. When it went along with, or got swept into, Gitlab, F-Droid took a wrong turn. This is not circling; it is going wrong directions, and setting bad examples. IMO.
messaging, not F-Droid, bringing this into that helps this discussion how?
When someone argues against centralized services in one area, but uses/pushes/works for them in another area, it detracts from their credibility.
Messaging specifically, it is related: Switch to Monocles, not Conversations. Support moving off centralized, privacy disrespecting, dis-services.
Repeating the same things like Cpt. Obvious helps how?
You remember Cpt. Obvious, don’t you. Honestly, I do take this daily reminder bit from RMS’ '22 State of Foss (rambling, chewing, annoyingly presented 
) talk.
PS. It hurts my eyes seeing “login with (Microsoft) github” every login.