Because it makes Dalton Caldwell money. At least, that's the reason Caldwell would give you.
If Caldwell actually cared about making "a real-time social service where users and developers come first, not advertisers" he'd build something on status.net, or at least something open source.
> If Caldwell actually cared about making "a real-time social service where users and developers come first, not advertisers" he'd build something on status.net, or at least something open source.
I disagree.
When making a business, your paying customer is the one you serve. If App.net goes for charging users and developers, they'll (logically) focus on those exact people.
I disagree with your disagreement. Caldwell just wants to make money (and the glory) Nothing wrong with that. I want to make money too first and foremost :)
If Caldwell actually cared about making "a real-time social service where users and developers come first, not advertisers" he'd build something on status.net, or at least something open source.