My big issue is that Nordeus did this without having a replacement ready. Instead Auctions prices will get even more inflated. The markets will essentially have been completely ruined. I get what they're trying to do, but it should be easy to detect suspicious activity coming from the same hostname or IP address. Instead they're ruining the market for everyone.
Keep in mind that people didn't need the Negotiations tab as much when the old Auction system was in, because you could actually buy players for cheap...