I think sometimes that a lot of frustration comes out of the member rating system.
If someone asks a question, I tend to ignore their indicated ranking (newbie, junior, full etc) and try to probe their level of expertise.
Sometimes the probing is taken as condescension (by members with more experience than their ranking would suggest) and sometimes triggers an adverse reaction - "if I knew that, I wouldn't be asking the question - I'm a noob".
Both reactions are equally valid, and I try to tailor my responses from that point onwards.
Sometime I fail.
(My ranking was once "newbie", but it just meant I hadn't been a forum member for very long)