"44. Wargaming.net also has intellectual property protecting one or more innovative nd novel features that upon information and belief are utilized within at least the most recent version of World of Tanks®. For example, Wargaming.net is the owner of United States Patent No. 8,425,330 (“the ‘330 patent”), issued April 23, 2013, and entitled “Dynamic Battle Session
Matchmaking in a Multiplayer Game,” a copy of which is attached as Exhibit B.
45. The ‘330 patent is directed to methods and systems for matching client devices based on a permissible range of battle levels for each vehicle based on vehicle type and vehicle
tier."

This lets us know that the patent is in operation in WoT and Wargaming is prepared to fight competitors using it. You can't have your cake and eat it.

If you mention any of this on the World of Tank's forums you will receive a lot of counter feedback, some of it rude and some of it very persistent. It seems that there are some that appear on every discussion of the matchmaker putting down any possibility that the matchmaker is 'rigged' in any sort of way. They appear to want to suppress discussion on the matter. These trolls state that the patent is not in operation when Wargaming itself says it is.