I have not seen yet a chat window on any forum page. And I think that if this might be done for the rapidity of exchange between Moderators and Members, more time would be earned and as result emailing too be reduced.
More, to allow Members to exchange together in live with webcam if possible, and all things under controls of Moderators, I also think that the Forum comunity would do the DIFFERENCE.
This is my modest Suggestion.
Let's go forward!!!