[asginio]

1. They're ugly. 2. They're insecure. 3. They spy on users. 4. They lie. 5. They are a form of psychological manipulation. 6. They encourage consumerism and wasteful spending. 7. They waste economic resources that could be better spent elsewhere. Customers are the ones who pay for a company's marketing budget. 8. They lead to centralization of power in large firms.

[kiriakasis]

I completely agree, but I also believe that it could be relevant to keep in mind the difference between what ads are right now and what they could be.

If Mozilla can grow a small but reliable advertisement space and impose significant restrictions on the style and taste of the ads this could actually improve the whole industry.