Precedents are set for a), b) and c) so I wouldn't change the text on those MOSS pages. I don't think anyone who "owns" wiki pages will look only at the wiki and ignore the forums, so I don't think there's a risk that some comments are going to be missed. Some folks will be more comfortable making forums posts than editing the wiki, others will feel that editing the wiki or using discussion pages is more natural.
So, are you even aware that Gehn commented on your UserTalk page?JWPlatt wrote:...I rarely look at wiki discussions; I only read the wiki pages.