> Not to mention, your search in an ad-less world will simply return... ads. Because that's what ads are meant be: persuasive arguments -- salespeople calcified in text.

The last person I'd ask for advice about what to buy is a salesperson.

Besides which, in an ad-less world, how would a search return ads? :) It would return independent and unbiased product reviews.

> Let's take this ad-less world to its logical extreme ... design and paint every building so it's the perfect shade of uniformity; strike down any person that so chooses to wear any clothing but our perfect shade

This is not a "logical extreme"; this is a straw man that fell down a slippery slope.

> ads serve a purpose

The purpose of convincing me to buy things I wouldn't otherwise have bought, which they do by lying, misrepresenting, dissembling, and psychologically manipulating. (Especially Internet advertising.) I feel no obligation to support that purpose, especially when pursued using those means.