|Professor Shamsul Amri Baharuddin
People who do not use Facebook fall into three broad categories.
The first group is completely indifferent to it, the second finds it mildly irritating and the third dislikes it intensely.
Malaysia's prominent sociologist Professor Shamsul Amri Baharuddin is of the last type.
I made the mistake of asking Shamsul, who is director of the Institute of Ethnic Studies at Universiti Kebangsaan Malaysia, if he was on Facebook, the social network which was hatched up in the dormitories of Harvard six years ago.
"I have a face and I keep thousands of books. Why do I need Facebook?"
How do you react to that reply?
I didn't. I meekly invited him to elaborate on his reasons.
"Facebook will take away my soul and I won't allow that to happen because I am a believer," says Shamsul fiercely, who launched into a tirade of accusations against Facebook.
Ninety per cent of the things you read on Facebook are either petty, bitter, rude or offensive.
"I refuse to read something that I may not want to know. I have the right to read what I want," says Shamsul, adding that he does not want the social network to take away that right from him.
The very private Shamsul is unwilling to open up to strangers.
"Only Allah knows about me; why should I elevate Facebook to the status of Allah?"
There are now 500 million Facebook users and the social network is "adding 50 million new members each month".