https://adatracker.com/richest - Binance wallet holds 3.55% of ADA currently and lets assume Bittrex is/was about the same. Let’s assume no more than 10% of ADA is actually trading and another 10% traded. There is my rough 80% number. Over time we’ll learn more about the major wallet holders, but my guess is given this currently heavy weight by the early members and Japanese holders, their influence will be considerable in the direction the staking payouts and thus the community takes.
Over the coming weeks we’ll be pulling out more stats at adatracker.com, with a goal showcasing the “state of the network”.
Our hope in building the block explorer is that the incentives for putting work into this community project will be sufficient to continue building in the ecosystem. We’ve taken some risk by building before incentive structures are released, but in meeting with people like @jonmoss I know that the Foundation is looking at the best communities that exist today.