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What would have changed? What would you be seeing?

I've made a blog about the same topic. Meno even refers to this in his blog.
I also made some suggestions for improvement.

Yes, I read that post and I've referred others to it.
What I am asking is: if improvements happened, how would Hive be different?

Ah, sorry. I didn't get that.
I think the user retention will be better.

To answer my own question: one indicator might be increased numbers of accounts reaching 600 HP