You are certainly right on that, I think the main reason is because people want to start playing as soon as possible and not read about it before playing.
I myself am guilty to that as well, I want to see what a game is like, see if it is fun before getting more involved in 'details'. then see how to deal with things on my way. I know the reason I get annoyed because I have to look on FAQ/Forum/How to play etc. is basicly my own fault. However I think most people are like me on that issue, first play, then learn