It’s sad to read the work of @Sav22999 would be discontinued since he made a very good job.
Most of my contributions (more than 2500) are coming from the mobile app.
The app improved a lot to a point where it’s a real pleasure to contribute, without a lot of small frustrations we could have with the website.
I definitely hope Mozilla will consider again this question. There are other solutions than just blocking every app to use the API. Especially when an app like the one @Sav22999 made exists and helps a lot of users to contribute to this huge project.