Being in the electric power and telecommunication business, I have observed a significant amount of players who lose internet/broadband signal which creates the same appearance as one who is signed on and just inattentive. Recently several companies including our own conducted a rather expensive scientific survey of broadband availability among other other characteristics. A couple of interesting perspectives learned: (1) There was a significant % of respondents who were oblivious to the fact there are many people who don't have higher capacity nor reliable broadband; (2) The average household cannot afford more than $65/month for broadband of 25Mb/sec (or higher); (3) For those willing to pay more than $90/mo for speeds greater than 100mb/sec, the number of respondents fell to approximately 10%. This was an average of an urban and rural area. These numbers are similar nation wide, with urban areas providing the lower cost, higher speed, and higher reliability one would expect.
As i began to notice more AFK players i realized while not every AFK player has unreliable and or lower speed broadband service, it will be a contributing factor. The more deluxe Wargaming makes the game and "if" the requirements increase broadband needs, this could also be contributing to more AFK players. I am sure those players with lower and poorer performing broadband service is not something they desire, rather they may be stuck with it depending upon their economic condition and local service availability.