OP
No they are “high-end”. Audiogon has a very wide range of users. Some have inexpensive equipment and little experience, some high end systems and lots of experience, and everything in between. Some folks are interested in voicing their bias, some do not reveal enough in a post to allow a reader to figure out where they are coming from. Then some folks are highly experienced and can give very good advise.
On the AA forum, I am guessing the average number of years of audio experience is 40 and the average system cost probably $100K. So, ask questions about high end equipment there you will find a lot of folks that own that equipment and have experience evaluating it. Also, the language to relate their knowledge.