Once upon a time...
Many years ago, this site was used by a group of more or less geeky friends from Grenoble to share programming projects and pictures. Time passed, and we went our separate ways.
The site was abandonned, some of its content moved to other sites, and it stayed "pending rewrite" for... a long time. Too long. There were some attempts to kick it back to life, but the emergence of social networks made these attempts feel futile.
Because social networks are not open systems, and because each additional status, message or picture posted there increases the reliance of the user on a given site. Because we'd rather have full control over our personal data. And finally, simply because we can.