Profit I would assume. What else drives greedy investors who purchase properties en masse in a foreign country and then let them stay empty because no one will rent at their exorbitant prices? I have no idea what it would do to market prices, but the housing market is too high and apparently will crash regardless (or so many “experts” say). The person who decides if the value is fair is the seller, just like if I said “Hey Sikto, I’ll give you $10 for your house” you would have the right to say no because it’s a voluntary choice.
I simply made a suggestion off the cuff that /could/ help. I also never suggested there should be any policies in play that force people into anything. I only said the govt /could/ make offers on these investors properties to purchase and then they /could/ use them to help address the issue by converting them to subsidized housing or using other alternatives, such as free distribution (although that’s utopia and likely would never happen).