[libber]

Facebook has 750 million users. [1]

Myspace has 63 million users, maybe less. [2]

I think userbase is a valid part of a social network argument. Or at least far from "patently flawed".

1. https://www.facebook.com/press/info.php?statistics 2. http://social-media-optimization.com/2011/03/myspace-loses-1...

[tomelders]

Facebook didn't start with 750 million users though, or even 63 million users, and that fact had no bearing on Facebooks rise to prominence.

Userbase size is a symptom of something else. It is not causation.