This whole discussion is about one thing. Freedom. Now freedom is a scary thing. Freedom to carry a gun means that your crazy neighbor may get to. Freedom to pursue a new enterprise means you could lose everything. Freedom to speak your mind means you could offend someone. But it is that freedom that makes this country great.
The statement that "It is extremely difficult to accept what is written by 'wannabe authorities', who don't have a clue regarding the topic..." reminds me of the British reaction to our "grand experiment" in freedom over on this side of the pond. A man with no formal schooling but with a drive and the freedom to pursue his dreams could succeed. Our imperial cousins hated the notion of such a person being granted equality with the nobles, but it is that freedom that made and makes this country great. No one can tell you that you are a "wannabe." You get to prove that for yourself.
When I was just getting into knifemaking, I had a maker tell me to stop coming around because, "He was tired of wannabe knifemakers coming around and asking questions." Now 17 years later, I don't know it all, but I had the freedom to prove that I am more than a wannabe.
In the same way, the internet forums are free. They are free of restrictions (except way out on the edges) and this allows everyone to participate freely. Sure, there's junk. But how is that any different from any print publication? I see stuff written in magazines, newspapers and books all the time that I know for a fact to be false, or at least highly misleading. That's what discernment is for. No one is obligated to believe what they read here. To the statement, "...sort through the garbage to reach the substance..." I respond by saying "welcome to the real world." As a college professor, I'm sure Carolyn would encourage her students to not believe everything they heard, everything they read, or even things they saw, unless they could be verified to be true.