I have thought about whether banning advertising would be a good idea prior to stumbling onto this article. I'm not saying there would be no downsides, but I think there would be a TON of benefits as well.

Consider that advertising is mostly (not 100%) a zero-sum game. It's not zero sum when it helps to inform people of products and services that would make their life better, that they would willingly have sought out and purchased if not for their lack of knowledge that the product existed.

However, there are lots of extremely common situations where advertising is just a net drain on society:

* when it encourages people to buy things they don't need, exploiting our monkey brains' desire for the seratonin that accompanies buying stuff.

* when everyone already knows what's out there in the market, and it's just massive empires fighting for market share, like coke and pepsi, or various car companies, trying to keep their products in people's minds. They're just playing tug-of-war and very little changes.

* again like with soda, or cigarettes, or vapes, or fast food and junk food, where the products being advertised are actually worse for your health than the default alternative (drinking tap water, not smoking, cooking food at home). Perhaps people enjoy these things, but there is a hedonic treadmill effect where you quickly get used to them and are no better off than if you just avoided them.

* when advertising makes public spaces less pleasant to be in. And when it's distracting to drivers, increasing the chances of an accident.

* when advertising makes websites hard to use

* when the advertising industry vacuums up tons of talented people with the attraction of the money they would make, who might otherwise have gone into careers that are more beneficial to the rest of society

I don't doubt that shills and astroturfing would still exist or possibly get worse if you did nothing about it -- but you could ban that too. You wouldn't catch everyone, but the threat of punishment would make it much less likely for people to be willing to participate in that sort of stuff.

I do think that we would need a replacement for the small, actual valuable thing that advertising provides, which is providing information. I think it would be great to allow sorts of "ad indexes" or "product indexes" which are websites specifically dedicated to aggregating information about all the products available in a given market. Maybe search engines are already good enough for this purpose. Honestly, when I want to learn about what's out there because I'm getting into a new hobby or something, I just do the google-reddit trick like searching for "reddit good value electronic piano" and reading about what other people like.

Likewise for politics, it would be fantastic if every election had a website where candidates could submit their policy platform and potentially a video or two (though I like the idea of JUST text for this) where you can read about them. It's hard enough to find out about candidates for local elections already.

So I'm very much in favor of trashing the whole thing. I think it's a case where advertising benefits those who do it (and in very rare cases, consumers) but mostly just has massive negative externalities. Classic case for either banning it, or putting a steep tax. Usually I'd prefer the latter (as in the case of carbon taxes), but I think taxing ads would be very complicated and the tax rate would probably instantly make most ads vanish anyway, so I think a ban makes more sense.