A sticky in TravelBuzz could inherently become complicated IMO, as the various discussions could be lengthy. Additionally, I don't dispute the fact that a majority of the posts are positioned correctly in TravelBuzz, some have obviously spilled over into the international airline forums of AC, BA, AF, etc. These discussions may initially be airline related, almost always linger over into non-forum relavent topics.
Additionally, how could a single or even a couple stickies be managed efficiently enough to accomodate the multitudes of topics? You'd almost end up having to manage multiple topics within a single sticky, and that could get quite... sticky

(pun)