Well, of course free users cost more money than paying users: they aren't paying! You're twisting his words. While it's obvious that free users will inherentl

Well, of course free users cost more money than paying users: they aren't paying! You're twisting his words. While it's obvious that free users will inherently incur a net cost, it's not obvious that the actual per-user cost of a free user is higher than that of a paying user. The latter is still a very interesting observation.