>After all, if you acquire 100 million users but only 0.1% activate, and you have a site of 1 million active users, your ComScore numbers might look nice, but you're right about to jump the shark!
I'll take 1 million active users.
Yaw, but what a tremendous freakin' waste. Work on the bottom part of your funnel FIRST and improve that conversion. Hrm. There's a blog post here somewhere. I love playing counterpoint to Andrews unhealthy obsession with the top of the funnel. :-)