i was talking about general ad blocking software that by default removes all 468x60 images or other common banner sizes. i dont know if hando rotates his banners (he isnt at the moment) but on my site i have different banners depening on what area you are in (GBA, GP32, Zodiac etc) so the adblocking software will automatically delete any images with banner dimensions.
I can understand why people by default block all banner type images as there are some sites that have many banners but it does hurt the sites that keep the banners at a minimum so not to annoy people. I personally only block popups everywhere and sites that have an excessive number of banners or if the banners are too obtrusive. I see your point of blocking adverts after you see them once or twice, but that may mean you miss out on new banners, I for example reuse filenames for some banners when replacing them with new ones.