An MM that sold shares short today, let's say 1,000,000 shares at .057 now has a pending cover of $57,000. The MM wants to "buy" or "cover" its $57,000 short for as low as it can to maximize profit. Thus, where MMs short regularly, they often (either tacitly or in express cooperation) "walk the pps down" the next day to "buy" or "cover." In the above short analogy, for example, the MMs might walk the cover down to $49,000, meaning they'd walk the PPS down to .049 per share, resulting in an $8,000 gross profit.
DILUTION IS NOT THE SOLUTION!!!