[doesnt_like_ads]

(unfortunately had to make a new account to say this)

I block ads for two main reasons:

Annoying Advertising

Very few of these "rich advertising media" campaigns are any good. The few that are good are overshadowed by the really crappy ones with flashy imagery and music and generally breaking your web browsing flow by overlaying junk across your page. What makes it worse is that the people that commission these things think that this stuff is great and nobody in their "bubble" thinks different. The worst ones in my opinion are those keywords which you accidently hovered over and your browser locked up for 2 seconds.

Crap performance

Ad networks are an utter joke in terms of performance. As they said at velocity conference a few years ago "If you work for an ad network, shame on you." Ad networks don't do simple things like putting scripts on a CDN, not using gzip, still using document.write, not optimizing javascript/images - basically the whole Yslow rulebook.

Privoxy block data

26880 out of 283845 requests have been blocked, which equals a block rate of 9.47%.

(Interestingly enough it never gets much higher than 10%)

A lot of the time each advert takes 1second+ to load. I'm not sure right now about the uptime on this PC but assuming each ad takes 1 second to load each ad that's been blocked that's 7.5 hours of time waiting for ads to load.