As an ATCO, I want ride reports and am perfectly happy to pass them on also. At the end of the day I’m a service provider and anything I can do to improve that service (time permitting of course) is a good thing.
And yes I’ve noticed an increase in the frequency of severe turb reports and sigmets in recent years. It could be as much do with more congested airspace as with climate change. I got my first ever “extreme” turbulence report a couple of years ago (from an A380 of all things). I had forgotten there was a category above “severe”.