[nwilliams]

>6M users is just not interesting when you're chasing having hundreds of millions of users.

In the use case of a type of site where cascading network effects are of paramount importance, 6M engaged users is huge.

[tomkarlo]

Yeah, but you're assuming they'd be engaged. If they don't like G+ and they're just using it as a news reader, that's pretty much the opposite of engaged, from a social network perspective.