I would request to add an option on those board so that users can check the latest posted ann easily. For the new ANN, very few people bump them, in fact, no one. So, new ANN get unnoticed most of the time.
That's already possible. Just click on "Last reply" to sort it by the last reply and everything will show up as it was before the new bump changes.
Don't get what you have referred to. Looks like I didn't notice what you shared.
I've seen some thread with reply few months/years ago got bumped by spammer and it's annoying sometimes.
Agreed, the new announcement should be on the top so that people get what's new. When people check, by default they see the bumped projects which are mostly old, not new at least. While most people visit the section either for getting a update from certain announcement or to discover a new project.