School friends are the first to be axed on Facebook, study reveals #CarryGobySeanKellz #FutureGroupNG via @myentertain9jar

OLD classmates are the first to be 'unfriended' when we have Facebook culls, a poll has found.

Controversial comments about religion are one of the reasons cited for unfriending someone [AFP]

Next to be removed are friends of friends, colleagues and common interest friends, according to research by the University of Colorado Denver.
Christopher Sibona, who led the study, said: "The most common reason for unfriending someone from high school is that the person posted polarising comments often about religion or politics.
"Your school friends may not know your current political or religious beliefs and you may be quite vocal about them. And one thing about social media is that online disagreements escalate much more quickly.
"The other big reason for unfriending was frequent, uninteresting posts."
The research also showed that unfriending happens more to friends who were once close than those who are just acquaintances.
"If you have a lot of friends on Facebook, the cost of maintaining those friendships is pretty low. So if you make a conscious effort to push a button to get rid of someone, that can hurt," Mr Sibona added.
The findings were published in the 2014 47th Hawaii International Conference on System Sciences.