Hello friend greetings to you, hope you are doing well and good there.

Every Blockchain is born with certain criteria but little advances and consolidates with the passage of time. Yes this is true and we have seen many changes in Steem tokenomic system too. You have given a beautiful data of it here.

You said that Participation trends are important, it gives us the data of the stability, health and robustness of the blockchain; Every time we find or study an ecosystem, The first thing we see is it's community and the activeness of the people there. I completely agree to it too.

The proof of brain question is dealt quite awesome too. You said The Brain Proof (PoB) distinguishes us as a platform, it is our plus point in the crypto world. This is very much true and I think Steemit is the best and dominant decentralized social media platform in the world. You are very true in saying that the brain proof gives us a score above other ecosystems, because it gives us reward in crypto and Even from the very beginning, without any criteria. You just have to make quality post and show your engagement.

I wish you very best of luck in this contest.