Because it's easy pickin's with these easily manipulated penny stocks.
they see the newbie investors coming a mile away, they're like clock work, and the simply sit back, lick their chops and wait for those unknowing types who set automatic stop losses to make their daily mistake... then, when they feel there are enough of them to make it worth their while they pounce.
easily manipulate the stock to drive down price and take out all those easy stop losses and increase their quota of low priced shares.
wash... rinse... repeat another day!
Auto-stop losses on pennies are a mistake.
I trust my own judgment... not your bull shit.