Hey @cp0x thank you for the feedback!
When it comes to user data we honestly have a lot of the same questions. Wanted to be thorough as the tools for finding info on users are getting better every day. These lists were meant to be optimistic as we can always remove fields that end up being too difficult to find. We are hoping we get experts in different verticals to help build on and refine the starting buckets that we presented.
We have a post here about how we would approach calculating KPI’s that might answer your last question here. Serious People: Proposed KPIs for Arbitrum Grant Programs
Happy to answer any other questions here or on one of the group calls in the future!