Audiogon intelligence exist but distributed among a lot of uninteresting posts...
To answer the OP question...
The good news is that it is very easy to separe the wheat from the chaff ...
it takes me time in the beginnnings for sure...
Now it is as easy as reading a simple book...
It was way more difficult for me to understood who is right and who his wrong in medecine...
The last 4 years help us a lot to see who are the fraudster and why and how ...
We learn by studying...
in audio by experimenting ...Reading about gear impressions is almost useless in the long run ...Save to buy a relatively low cost synergetical system. After that nothing will replace acoustics experiments sorry ...