I agree with you, but how it this different from large companies that publish their target prices or reports that cause people to buy/sell stock and in the end

I agree with you, but how it this different from large companies that publish their target prices or reports that cause people to buy/sell stock and in the end its the same - those who were in good position before report have gains and those who came later lose money? To me it looks pretty much identical, and that has been around since the very beginning of wall street.