"Notification Message by Game System:
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[ Thank You ]
We've recently taken action against one or more players you've previously reported for bad conduct.
Thanks for your help in making the Dota 2 community a friendlier place.
[ OK ]
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I believe this announcement by the Dota II game has related with an announcement made through the "Frostivus" event -Click HERE which involve a wave ban of up to "65,594" smurf accounts.

Well done, Valve!
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Glad for my effort or contributions to the Dota II community or game.

Regards,
MVP_lCE"