We just need processes to learn and avoid doing mistakes twice, and shaming is a poor way to do it.

If I risked being ashamed when making decisions, I would probably avoid decisions altogether. This would be awful. The discussed decision is not even out of law.

What we can do though, is to tell people we know and love about F-Droid and suggest them to only fall back to the Play Store if they don't find what they want, and that they should be aware that by doing so, they enter the jungle and that this jungle follows Google's arbitrary rules, some of which are not in their own interests.