To be fair, https://meta.wikimedia.org/wiki/Grants:Evaluation/Evaluation_reports/2015/Wi... was useful for me to quickly extract a couple trivia/curiosities.
Other than that, I agree I wouldn't know how to use it for any meaningful evaluation, at least for the purposes I had when volunteering for WLM-IT. I didn't expect that though; defining the goals of WLM-IT and assessing our progress against them has always been our own burden that nobody can help with (especially given the very peculiar situation with Codice Urbani).
Nemo