I don't know about other Amazon sellers but trying to find the jewels among the off-topic and sometimes unpleasant postings is taking an increasing amount of time and effort.
I tried setting up an alternative book selling group about eighteen months ago but it withered after about a year because too few people participated.
Recently, I asked the forum whether anyone would like to take part in a survey to try and understand the reasons behind sales fluctuations. I have had very little response.
Perhaps people are happy with the myths and are happy with the forum as it is. I'd be interested in hearing other sellers' thoughts on this subject.