The Irony of Complaining About Complainers

Do you always try to see something positive, out of negative situations? Do you surround yourself with people who are uplifting and positive, as well? Or -- are you with a crowd, that tends to complain; but, somehow, they make everything seem brighter, by a connection of sympathetic, mutual, misery?

There are a lot of pluses to complaining. Venting, and establishing an accord by a sympathetic  'I feel you' -- can really make a difference, from a release and knowing that there is someone else, who is going through the same thing as another person.

However -- When occasional complaining, turns into chronic whining -- it can become non-productive and useless. 

How do you deal with chronic complainers? It would be ironic, to complain about them. Would it not? (Sometimes, people do complain about complaining; but, I am not necessarily complaining about it.) (lol...)