I assumed this was the case and that any reporting on "users" and the "historical" nature of their short time to 10M users was 100% BS.
I think the strategy is great and I would do the same that they are doing, except I'd leave out the bit where I crowed about reaching 10M users in 7 hour or 100M in a few days. It's too obviously a lie supported by the ability to leverage one network into another.