I doubt the $4m was for 100% of the company. It's unknown what the ROI would've been for the investors.
But still probably something the founders are regretting.
But still probably something the founders are regretting.
If the investors didn't have a controlling stake, then the founders would be pretty damn rich.
Players who suceede in this space have either 100x the eyeballs and/or their internal ad network with better revenues.
If they rejected to better execute their vision, probably not