My gut feeling as to why this forum hasn't degraded to the level of some other forums is because of the XCR.
Most people appreciate the XCR for its technical capabilities not advertising capability.
So, the ratio of people who buy stuff because everyone else has it or who see it in gun magazines to people who buy stuff because it works is skewed on this forum in favor of people who buy because it works.
Because the XCR actually works, you don't need to get down to personal attacks and childish name calling to defend it. As a result the overall culture around the gun is different.