it's really not that necessary to place GTC orders. MMs sometimes go short, on an intraday basis, but only to shake the tree when their stock is in an uptrend.
selling is good for a chart. i wouldn't want to do anything to discourage weak hands from getting out. MMs are like wolves, scouring the hillside of rabbits. they perform a job in the penny ecosystem.
the flipside of this is MMs who push a stock sky high. when do they do this? when they have loaded up a bunch of cheap shares. how do they get the cheapies? by shorting on an intraday basis. see what i mean? selling is good.
i encourage anyone here who is the least bit "on the fence" to hand their shares to a bull. again, this is just accelerating the "weeding out process". the fact that we're heading higher means the vast majority of traders are greedy, but it never hurts to have profit taking along the way. that lets in new money, which aims for higher prices.