I have been reading more and more about them and the things that happen in the shadows, if you what anything to share please do for me and others to read in one place

It's always been price manipulation and using bot trade to do wash trade, and pump, and dump they are doing this to have a good standing in the market and of course for investors to believe them that many traders are using their platform.
Big and small exchanges are doing this, to stay in the competition or move ahead of the competition.