Frank, from my forum experience some won't go to links (or clearly read an OP) jumping to conclusions AND commenting anyway. Many times a copyNpaste is nessesary to make a point.
As far as Wiki is concerned, it is a decent source. They try to not let people edit without back up on info posted.
Your intro questions lead perfectly into your sources.
Have you read CoC? What I found interesting is Franz seems to give the impression the GB is never intentionally lying, only making interpetation judgement calls. And when they find they're wrong. They cover it up with a spin or don't correct it due to fear of losing cred.
Personally, I feel ego and power is also a major player within the ranks.
I also wonder the mental state and cover ups due to dementia with the aging GB....