They are, I believe still taking an interest in the game. When they have something positive to communicate, they will.
There are old players returning, some that have played from beta and left sometime after live, some pre-merge, some post-merge. There are also new players joining, I see at least 1 or 2 a week.
There's no shame in loving the game and wanting to see progress made, or keeping tabs on things and hoping that quest fixes, game updates, NADIA's prices will all be addressed one day.
Doomsayers have been posting for years now that HZ will die and it's still here, and will be as long as players still find content and enjoyment in what they're doing. I very much doubt that anyone has truly exhausted all there is to do and accomplish in HZ.