Well, I for one think that the Ed's chats are a great idea and a very quick and easy way to get points over in a friendly manner.
And I think they should stay on Suggestions because lots of us rarely use Chatterbank and Chatterbank threads disappear down the pages at a very swift rate. If I remember the Ed. did post when he was going to have the last 'Ed's Chat', but he posted it in Chatterbank!
Better to stick to one section and as most of the Ed's chats are concerning AB user's suggestions surely this is theappropriate section. And if people fool around in the thread a bit, does it really matter - light hearted banter adds to this site.