I may be over-thinking this, but when I read articles like this I relate it to the difference between "social norms" and "market norms." When you're doing some

I may be over-thinking this, but when I read articles like this I relate it to the difference between "social norms" and "market norms." When you're doing something in the realm of social norms (e.g., for fun, for helping other people, for recognition, etc.) it's great because you get that warm fuzzy feeling inside for doing it. The minute you cross into market norms (accepting profit for what you've done), it takes on a different form entirely and can lead some people to be less productive or motivated in their pursuit. Not that either way is necessarily good or bad, it's just that when social crosses into market the initial spark can lose a lot of its appeal. That might be why a lot of weekend projects are never properly monetized. Apps built for fun are great when they're purely in the social norm realm (and stay that way), but lose a little bit when they cross into a for-profit.