This is a VERY interesting idea.
FlyerTalk could potentially become the preferred location for comments for all sorts of travel-related blogs. The challenge is financial: The company hosting the blog would prefer that all activity related to the blog generate page views (and advertising revenue) on the blog's site. Posts and page views on FlyerTalk do not make the blog any money.
OTOH, putting blog comments on FlyerTalk has the potential to greatly increase the number of comments and page views. If the owners of FlyerTalk were to share some of the advertising revenue with the blog site owner, both parties could gain revenue.
If we can put a concrete proposal in front of Internet Brands, they might be able to make revenue sharing deals with several blog site owners.