It seems the opposite is true here.
> [Shorts] literally can't be made, unless there was someone in the market who thinks that at the short price, the stock is a good investment opportunity. Every trade is proof that the market thinks the stock is a good investment at that price.
Again, this isn't true. The spot price has to decrease from the point where short-selling is happening for there to be a willing buyer, unless there is a new bid. Yes, transactions happen at one singular price, but if you're only saying that every seller has a buyer and every buyer has a seller, then the guy that you replied to is correct. What you're essentially saying is that "every gallon of milk is sold to a person". This is not useful information.