PPRuNe does at least have the benefit of moderators who do intervene when posts "cross the line".
A lot of the points made apply to any specialist forum on the internet, where long standing members become fed up with the constant repetition of trite queries that could have been answered with a quick Google search.
If you cannot be bothered to do some research before hand, how can you possibly benefit from a detailed technical explanation if you don't know the basics?
PPRuNe is one of the best sources for technical discussion available on the internet. Like all internet sources, it works best when you have sufficient background knowledge to know what you don't know, and when to accept the opinions of those who are better informed than yourself.