LOL, if you are saying MM's do not manipulate L2's I got news for you.....
I have seen MM's show a bid size of 100,000 instead of 100 on an unsolicitated pinksheets stock....And I saw many posters take a screencap of the L2's and post them on the messageboards... Saying wow look at the bid support...ohhhhh woooooo....
When in fact when the bid got hit and it was their time to step up and buy on the bid they backed off... Same thing on ask i have seen....