I am quite new to this board, so I am trying to provide the best post I could as I find the merit system a good way to raise the signal/noise ratio.
err what? Why do you even bother about the merit system? Start posting meaningful content in the forum and soon merit will come after you. Then you wont have to chase after merits. 
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I accidentally bumped in a user with over 1k posts and almost the same merit.
There were default merits to every user at the time of introduction of merit system. So a Legenedary member here on introduction of merit system receives 1000 Merits. So I guess that was what you saw. Quote
Is there a way to have a ranking of best user sorted with high ratio?
No idea. But what is the need?Quote
Time is even scarcer than bitcoin, so I want to effectively use my time to learn from user that posted quality stuff using effectively their time!
If it was from the default merit distribution at the start of merit system - then that person may have been a shitposter. 