Well, I have a fundamental objection to stripping banners from web sites. Mainly this is because a site like this very one, for instance, is getting its income from the banners.
Blocking the adverts can mean that the site in question closes down, and at the very least you are, in effect, not paying for the site. If a site has banners and you have a fundamental objection to banners, then go elsewhere.
Oh, and I should point out that if you don't like the banners here, then you can of course turn them off - just become a contributing member.