Naim don’t routinely monitor the forum, so if you have specific requests it’s best to email customer support. support@naimaudio.com Whether it’s actioned is something else; what’s desirable to some is often undesirable to others.
The regularity of updates is not regular. I think there have been two minor updates in the last month or so, but big updates can be months apart as they get a lot of testing.
What little I have requested has been implemented eventually. This could be a coincidence but it never hurts to feed your requests in to the mothership. You can ask in here or contact Naim via their website.
Nothing wrong with submitting your feedback, but don’t expect it to change anything, most of it the team is probably already aware of, it would be strange otherwise.