Packaging https://traewelldroid.de/ would be great. It is an app for checking-in into (mostly German) trains as a social way of connecting to other people and scoring points etc. Kind of a social platform but very focused (and without chat currently).
To me it reads more like the author is kind of against F-Droid inclusion (especially the instant locking of those issues) as long as they did not personally investigate into it.
Just had a look into it myself, and it seems possible to go without the help of the author, but we would need to register an träwelling oauth client our self