We need to get web browsers to ship with Adblock from the start. You'd be insane to set up an email server without some form of spam filtering, why not do the same with browsers?

Yes, it would collapse the current web business model. I fully support this.

As much as I loathe ads myself, I don't think it's a good idea to default to blocking ads, not the least because the definition of an ad is a little hard to capture completely without either false negatives or positives. Different people also have different ideas on what they consider acceptable ads, so it could be a form of unwanted censorship to some.

Default to showing all the content, but let people make their own choice on what to filter out.