Guess my feeling is that in a chat, the conversation is not saved for all to continue learning from it long after it has ended. A forum is better for that. I have the same response to all of the questions I get (and there's a lot) through a PM right here. I kindly ask that they ask the same question in the forums, so that others can learn from not only their question and my answer but also from the answers and interactions of many others.
I'm all for chatting for things like OffSec as one is going through a course and exam. This way they can get help immediately when facing a deadline.
On a personal note, I know myself. Between family and running this site, time is a premium. So I might poke my head in there every now and then, but I just won't be hangin' out in the channel.
I appreciate all of you wanting to extend what members do here on EH-Net and encourage you to keep up the communication. More speech is always better than less.
Hope that helps shed a little light,
CISSP, MCSE, CSTA, Security+ SME