I drop a comment whenever I appreciate a post on a site or I have something to valuable to contribute to the conversation. It's triggered by the sincerness displayed in the post I read.
And after this article Jacky Jack Agility. I was moved enough to drop a thought

I do have 2 questions for you if you don't mind. Could it be just me or does it look like some of the responses look like coming from brain dead people? :-P And, if you are writing at other online social sites, I would like to follow anything fresh you have to post.
Would you make a list the complete urls of all your shared pages like your linkedin profile, Facebook page or twitter feed?