I think they’ve changed the way it’s presented to the buyer. The wording for feedback must be different. I imagine something like “Let other buyers know how your experience was to help them better decide”
as @vickiespencer said, I’ve also noticed they are less inclined to leave feedback at all.
I run a “Live Portfolio” and haven’t had anyone put anything on it on over 4 months!
Obviously, that’s not checked by default anymore.
I think the “Blind Feedback” system has made buyers reluctant to leave feedback. Doing nothing is safer than taking a chance on bad feedback for them. I don’t blame them. It’s not that they’ll get bad feedback, just that now they have a reason to fear giving feedback, however unfounded it is