I think the fact that the focal point of content here is on the user and not something more broad like a subreddit helps each user get what he wants from hubski without imposing on anyone else. So while a subreddit might one day become flooded with subpar content, I don't expect someone who has consistently posted great content to suddenly start posting memes and image macros. The responsibility lies on each user instead of the community as a whole to generate likable content, so the scope of quality stuff coming in has a much narrower focus. At least, that's the theory.

Revenue generation is just one measure or worth, though. Not every good idea makes money or should. Android is brilliant for being exactly what it is: an affordable, ubiquitous and highly adaptable open source operating system for mobile devices. It fills a useful niche that iOS cannot.

I also disagree with the notion that Google's non-search related endeavors are not remarkable. Their work with Gmail, YouTube, eBooks and maps/navigation are much more far-reaching than any of the closed services available on iOS. Siri and iBooks are neat, but I can only use them on iDevices which is severely limiting.