[tigershark]

You look at the market depth to get a feel where the market is moving. And spoofing modifies the sizes at certain price levels.

[blancheneige]

This is like saying we'll allow you to play poker but you can't bluff.

[erik_seaberg]

Poker is zero sum. Adversarial. The only way to win is for someone else to lose, so of course we try to sow confusion.

A market is supposed to enable trades that benefit both sides, because otherwise who would dare use it? Selling means I need money and I'd rather have the share price now, buying means you have money and you'd rather have the income in the future, and it doesn't have to be a regrettable mistake for either of us.

[Scoundreller]

Unless you have access to an observer account that lets you see all the hole cards:

https://upswingpoker.com/ultimate-bet-absolute-poker-scandal...