"integrating social networking is like failed love"

I still get folks asking for social networking features for their sites. I generally try to tell them to integrate with an existing one. I enjoyed this comment from Burningbird about Amazon's Kindle discussion board's fall
Amazon has just discovered what many other companies are discovering: integrating social networking is like failed love, amazingly wonderful at first, but eventually evolving into an urge to gnaw your own arm off in order to escape.