Hi Rocky
I am very new at this forum. My experience mirrors yours exactly. I have already left one forum because of this very issue. I couldn't agree with you more. My previous experience has made me give up that part of the hobby I loved the most. I have even sold off my collection that I had just because of the whole experinence left me with a horrible taste in my mouth.
Personally I believe that most people are genuinely nice. However some people get on the computer and all of a sudden have a napolean complex about somethings, especially, when they have things or events in their lives that they have no control over, and now they feel superior, or they simply get a great satisfaction from, belittling people, or trying make them feel smaller.
Some people do offer a good hands up with some information. However, how it is presented can be the problem. People often can't express themselves correctly.
But often times I can read between the lines on what people are saying or writing.
Cheers
Adam