The plot shows correlation between number of contests and max rating of a user for all (included inactive) users.
Changing in calculating rate for newcomers are easily to remark.
Although there is no correlation between number of contests and max rating I am mesmerized by people who have great number of contests. The diagram shows that their results are really outstanding.

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sutekine 398
balakrishnan 405
coderbd 500 — so a round figure!
PAG 641
ruban 700 — congratulations!

Anatoly ruban is my guest today. But his interview definitely deserves a separate post.