The followup article I saw here a few months ago suggested that Sao Paulo hasn't found that entirely successful, and has allowed a significant amount of advertising back.

I tried looking for this, I really did, but I couldn't find it. Can you find this information and put it in Wikipedia? I tried reading both the English and Portuguese articles, and I couldn't find what you are talking about. The only thing I saw in the Portuguese Wikipedia is that 8 years later they're having problems with illegal electoral flyers.

https://en.wikipedia.org/wiki/Cidade_Limpa

https://pt.wikipedia.org/wiki/Lei_Cidade_Limpa

I tried looking too before posting the comment, honest. But all I've got is a vague memory of reading it on HN a few months ago. Sorry.

The alternative is for our culture to have standards and expect more, and to build the technology to support that level of transparency.

Wouldn't it be nice if you could instantly have a high level analysis of every refrigerator available (new or used) in terms of its objective qualities? With scientific units of measurement and everything? How about information on how the parts were sourced and manufactured?

Unfortunately the majority of the world aren't even close to being in a position to have such standards, expect more, and have the education to evaluate the evidence. The power is in all the wrong places.

you should stop browsing the web if you don't want to be manipulated or read content with a slant. 99% of the organic content on the web is trying to manipulate you.