I'm pretty happy. Good forum etiquette is something that is quite slack everywhere really, and includes:
Be clear in your thread titles
Don't be abusive
If you don't know, don't pretend you do
Keep it on topic
Use clear English, and spellcheck it if you can't spell
Use the search button
I don't know a forum where that doesn't apply, and where to some degree each of them get ignored.
In terms of this particular forum, people who don't have any idea what they are talking about giving advice is an issue. The beginners section is the worst for it. I appreciate that beginners go there to ask questions, and want to help others so then reply in other threads in the section, but it's not necessary. Avoiding clouding the issue with a misleading half true post is more helpful than trying your best without being sure.
It might be nice to have some sort of knowledge/credibility based ranking system rather than a post count based one, as has been suggested. Having said that, if you hang about you learn who is worth listening to and who is a muppet irrespective of post count, so it's not a problem for anyone who frequents the board.