The less successful teams in the English Premier League tend to not have many "plastic fans". Chances are if you support Sheffield United it's not because they went on a US/Asia summer tour, but rather because people in your immediate social environment (e.g. family and close friends) support them.

Actually, email matching might be suitable for this problem. I did a project for matching flatmates a while ago. [1] Was trying to leverage a user's facebook connections etc. to create better matches (e.g. 2nd degree connections). If anyone is interested in taking it over/working on it let me know. [1] http://www.flatmate.io/

More radically, you can try this chrome extension. I've been using it for a couple of weeks now and it drastically cut my use of facebook.

Link: https://chrome.google.com/webstore/detail/news-feed-eradicat...

i use that now but it's hard for an addict to install that .