I assure you that Bitcointalk is not all there is to the Bitcoin community, although it is a large part of it. I see plenty of people pop up on chatboxes on Bitcoin-related websites who have never even heard of Bitcointalk who have found the site through other sources. There are plenty of other forums as well. We don't particularly need to start trying to hire a PR team, Bitcoin becomes more and more legitimate each day on its own.
Ok but BCT is currently the biggest influence there is, this might change in the future if other forums take over, but currently this is the stance.
Again you dont understand my words, I dont say that marketing is crucial, I`m only saying that it can accelerate bitcoin's growth, so why not use it?
Do you prefer using campfire or oven? Washing board or washing machine? Leafs or toilet paper?
Why not use the best tools available to help bitcoin? Why waste time and energy?