Certanly as practiced.
But I also do see a real need for *some* sort of communication between sellers & buyers. Otherwise, how the hell do you find that tool you need to get, for example? Or the next book you want to read? Or telling your friends about this great bakery you just discovered? Or to let your community know that your heirloom garden now has produce available to sell?
There is a definite need for SOME sort of market place info exchange. >
@esther
A huge piece of where we've gone wrong is that advertising has become its own extractive industry. This goes back farther than the internet, but publishing & broadcasting generally where the Money regards the "content" as a vector for the advertising, & the audience sees the advertising as a contaminant in the content.
It seems that creation and selling are fundamentally at odds, even though selling is pointless without creation, & creation can't survive without at least SOME selling.