The way I approach it with my users is there is a link on every page to report bugs and request features. Bugs get attention, features get considered. I also follow a [ feature ] -> [ tech-debt && bug fixing ] -> [ optimizations ] -> [ repeat ] and my users know that. Generally what I look for in the feature requests are trends and clusters of topics or pain-points and then I try to find the more common case that those multiple requests are all unified by. Once you find that, it's a lot easier to see if it fits into your overall roadmap / vision, and allows you to execute on it better.