Investors and speculators don't live in houses, renters do. If there isn't renting demand, than it doesn't matter how much speculation there is, prices will fall. Blaming investors is directing the anger at the wrong place. Blame regulations and building restrictions that prevent housing supply being built where people want it.
Did you see the last part of parent post? Corporate speculators actually gain even more by taking the property off the market and letting the fallow property increase prices for the rest of their herd of properties.
