how many of those are IRL friends and how many of those are people you met playing online or on vgcharts/vizioneck?I see what your getting at, but about 85 percent of those people came from the PS3 when online was free.
i think that percentage is biased. numbers aren't easy to get but 360 never really got past 10M or so gold users. i doubt ps+ is above 5-6M right now. it was only like 1M before the ps4 released.