Earlier quoted context omitted.
Price controls work to ensure scarcity. Flooding the market with new construction (at any price level, though ideally at all sizes and quality of housing) will do more to sustainably lower prices while leaving a functioning market.
a dreary part of this conversation is, nobody wants to play the game, what does random HN user sokoloff mean by the words "functioning market," "sustainably," "flooding", "ideally", "quality", and even "scarcity"? I don't know what you are saying, because you are leaning so deeply on an internal glossary known only to you, made worse by hijacking real words that everyone can look up in a dictionary.
I'm using those six quoted terms to have a meaning the same as what Google returns as the first definition for five and the second for one (which I think is obvious to all readers from context):
"functioning market" - A functioning market, in economic terms, is a system where buyers and sellers can freely interact to exchange goods and services, with prices determined by the forces of supply and demand, and where information is readily available. A well-functioning market is characterized by competition, efficient resource allocation, and the absence of significant barriers to entry and exit.
"sustainably" - 1. in a way that can be maintained at a certain rate or level.
"flooding" - 2. arrive in overwhelming amounts or quantities. I posit that no one was confused and thought I meant "1. the covering or submerging of normally dry land with a large amount of water."
"ideally" - 1. preferably; in an ideal world.
"quality" - 1. the standard of something as measured against other things of a similar kind; the degree of excellence of something.
"scarcity" - 1. the state of being scarce or in short supply; shortage.