I have started diving into this as well - just wanting to figure out the truth. It's hard to decipher all of the information that is floating around.
Here is how it sounds to me:
If you play on any of the servers you know the constant spam from gold sellers. It looks like there has been evidence leaked that has shown that Elysium/Crestfall staff had a hand in selling gold, or items, or characters. This is a huge red flag because it is signalling that this server is Pay to Win and that has a detrimental effect on the longevity and credibility of the entire Legacy WoW scene.