Steemit inc. STINC as some like to call it :) Has no guidance toward content, they just provide the Blockchain for us to create on.
I would estimate 100,000k+ has been earned writing user 'guides' for 'how to Steemit' in the past year, 300/400 by myself.
The list one was purely to pluck a number out of the air, I follow all of these accounts and greatly enjoy what they do.
As for some of the accounts on the 2nd list..... no comment :)