Want to check how far behind has Facebook's Insights really gotten now?

I've wanted to build a more generalized version of this in the past. Facebook does a poor job of reporting on many of their own API issues and it would be relatively simple to build a tool that called each API endpoint and validated that the results where correct and up to date.

Interestingly, Twitter forbids developers from doing this. In their API terms (https://dev.twitter.com/terms/api-terms) they have the following statement "You will not attempt or encourage others to...use or access the Twitter API for purposes of monitoring the availability, performance, or functionality of any of Twitter's products and services"