That would be where that 10 mil figure would have come from.

Yeah, is not the cost he's charging 3rd party, it's the expected lost ad revenue.

I'll admit I'm not entirely well versed in this, but what development? Is the API being continually worked on? I'd imagined it was relatively stable, especially given how awful Reddit has traditionally been with any kind of feature development.

Hell, they couldn't even make their own app, they had to buy Alien Blue and then drive it into the ground for $$$