It's been suggested that a single ultra rich player can drastically manipulate the CE market. I've seen numerous occasions watching the CE market where bid blockers would increase the price of CE by constantly putting higher bids above everybody else in large quantities, sometimes more than 100 orders. How do I know it's one or two people with that 100+ orders at that price? Because I see them get cancelled and poof the 100+ orders disappear and reappear at a higher bid instantly.
I suggest there should be a limit of how many active buy/sell bids a player is allowed at one time. If a player was limited to making say 10 bids, it would drastically reduce their ability to manipulate the CE market.
I agree.
I've seen this kind of market manipulation plenty of times. 100 orders pop up at once, disappear, and reappear at another price. I also think 10 bids sounds like a good limit, possibly up to 16 in one, or maybe 20 total, if there is a problem with 10.