[iambibhas]

You really don't get the point? Friendship request is an action From one user(say B) to another user(say A). Person A got sms because B sent a friend request to A only! Why the hell would I or @rish404 get a friend request from person B is we click that link? The link is a notification sms of an event, it should not contain an action that says "Send friend request to anyone who clicks this link from person B". Do you now understand my point?

[pasbesoin]

Speculation: When someone generates friend requests e.g. by allowing Facebook to mine their address book, FB only has to generate a single friend request ID. (I'm not saying this is the "right" way to do this.)