In my own observations, many topics that are posted get read, but it seems to me that the major cause of not getting a reply is that the question or suggestion is confusing or too obscure. Many volunteers participate in Moodle.org (like myself) and if I see a post that is a bit off-base, sometimes I will ignore it because I don't have the time to help the poster be more specific. I only have so much time in a day.
In your case with this post of yours, you can see that both Tim and Daniel have provided responses.
Having said this, there are many "feature requests" in Moodle Tracker
that are great ideas, but might take time to implement. In my own case, I have probably posted several dozen feature requests (let's say 36) and probably 12 have been implemented. My last feature request to get implemented took 8 years, but it then happened in Moodle 3.7. Moodle's track record, for me, has been significantly better than the other LMSs (BB, D2L, C) that I have used.
Piggybacking on what Tim said, I would agree, I sometimes start here in Moodle.org with a post, kind of like fishing and testing the waters, then I will post in Tracker. If something looks like a bug, I post in Tracker and follow-up here in these forums. In Tracker, if something about my idea is out of place, Tracker has the ability to "close" an item. I believe that posts here in these forums last a very long time.