There would be an expansion of questions and discussions to a dedicated Seattle forum if it was recognized that Seattle serves as a Northwest transportation gateway to those in Washington, British Columbia and, of course, the residents of Alaska.
Questions and discussions surrounding air travel can generally be answered through the various airline forums (most notably Alaska Air), but other ground and sea travel questions are a little trickier.
A Seattle forum would benefit those with questions about driving from Vancouver to SEA (or BLI) to board flights & save over paying higher Canadian airfares, taxes & fees. Also Victoria Clipper questions (high-speed passenger only ferry between Seattle & Victoria) as well as cruise related travel info (Seattle, Victoria and Vancouver are all big players in the cruise industry).
One example: When Disney started doing Alaska cruises out of Vancouver, apparently those back east did not know that Alaska Air has several flights daily between SEA and YVR! TA's were booking their clients to SEA by air and then were advising their clients to take the train or rent a car between SEA and YVR!
- a journey equal to the amount of time it took some of them to fly to Seattle! (Thank goodness Disney has since changed their Alaskan cruises to depart from Seattle).
I could give other examples, but yes, I give missydarlin's suggestion of a dedicated Seattle forum a big ^