Personally speaking, I am a listener and rarely vent out even when I have to and I didn't had the courage to go to chat. But one day I gathered all the courage and just started venting, the listener bail out on me when i told him/her the reason. I know some people are just not comfortable talking about some things but there is a way to tell. So now I just vent out to the few friends I have in my list, at least I know they would listen.