I'm definitely one of that core group, but since the twitter app started doing push notifications on mentions the only notifications I get from Notifo are ones I send myself from my webapps.
Grantit, I've found those insanely useful, but can see how that's only getting so big.
Me too. I have Growl set up to forward notifications to Notifo so I can get notified when interesting things happen during my work day (machine pave events, automation problems, etc.).
I feel like I'm a bit of a free-rider though, using Notifo's infrastructure without really offering any value back to them.
Grantit, I've found those insanely useful, but can see how that's only getting so big.