I have noticed that for some of the users the signatures are marked as nofollow while other users do not have such thing added to their signatures? Why is this?
Till you get beyond 3 figure post count all you sig link would have nofollow but once you cross that all you sig links ( including the old ones ) would have that restriction removed. This is done to fight sig spam and you may be aware we are on top of the list for sig spam
Oh ok. That makes sense, rewarding members who contribute and not who spam. Thanks for the clarification.