The site asked me today to review 10 questions for a "site self-evaluation."
What is this? How will the data be used?
The evaluations were meant for beta sites, but SE is also trying them out on graduated sites. This kind of evaluations used to be performed by SE employees themselves, but that didn't scale with the ever increasing number of sites. Additionally, SE employees often don't have the necessary domain knowledge to accurately judge the usefulness of the content.
The existence of this evaluation doesn not mean that SE is considering to shut down any graduated site. No graduated site was ever shut down, and I don't expect something like that to happen outside of exceptional circumstances.
The community evaluation is a tool, it is far more useful on beta sites than on graduated sites. If you don't see the value in the self-evalution, just don't participate. Participation is completely voluntary, you're free to ignore it entirely. Just marking every question as excellent without an honest evaluation is just wasting your time and producing noise in the result which you would have to filter out, if you want to try to get anything useful out of the data.
As Mad notes, this was designed for beta sites - we do periodic evaluations internally to decide whether or not a site is ready to graduate, and exposing this part publicly provides a way for a growing site to engage in a bit of self-reflection.
While this was never intended for sites that had already graduated, after its introduction we received several requests for it to be made available on graduated sites, so as of Friday it's available everywhere.
That said, if it's not useful here we can disable it. We're not using the data ourselves, so if no one here wants it there's no point in keeping it.