I would see if there was another forum that was better. If the users in a forum are too elitist and unfriendly to newbies then there are probably other people who also view the forum in the same way, who have left to form (or liven up) another forum.
I am active on several forums where yes, such users as you describe do exist, but there are also almost always friendly users who see it as their task to help newbies out. You could perhaps wait a little while for that person or people to post.
That said, on many forums that are related to a hobby, you are expected to do your research before posting. Some have Wikis or other informative posts with info on how to do certain things.
Too many times I see newbies create a new thread the first thing they do, in which they ask for someone to do all the work for him - and that never flies.
Instead, show that you do have some knowledge and that you are looking for a missing piece in a puzzle, people's opinions and advice.
Your post should also be simple to read, specific and to the point. People should ideally find out already from the subject headline what you are trying to find out. A thread with the subject "Somebody please HELP ME" and a post that is one long run-in sentence does not work. (I see those threads all the time, unfortunately)