Yes, the reputation system is not perfect and the KE ratio is a step in the right direction. I don't use it as an absolute indicator, but rather one of various things I check on the blockchain that might signal good or bad behavior.
Do you have links to this ASDFD system?
Here is a post from a while back which gives further links for key info. https://peakd.com/hive-153630/@atma.love/how-to-re-solve-most
There have been some refinements since then & not all is written down yet. Better simple presentation is in early prep stage.
Feedback & questions very welcome.