Are draft grades the most insightful thing? No, not usually. Players sometimes take time to develop and often never turn into what they are expected to be coming out of college. As a result, draft class grades are often simply a reflection of whether teams selected well-known players and if these selections happened later than expected.
With all of that said, the NFL draft (and all of the coverage surrounding it) is really fun.
This website aims to collect draft grades from as many sources as possible and determine if there are any insights to be had when observing them in the aggregate.