Yet another voice refuses to believe that Netflix never plans to resort to advertising in order to make even more money than it does today, despite the company’s protestations. This one however comes from respected German research company GfK. The methodology is simple enough, it interviewed over 2,300 US people to ask how much they were prepared to pay for SVoD services, concluded that it was the price that Netflix has just raised it to, and tried to show that Netflix will soon run on thin margins unless it begins taking advertising. According to the research, subscribers to Netflix, Amazon Prime, and Hulu – the “Big Three” of streaming services – are already paying at or close to the maximum…