I'm curious about something here. This site has caused a furor here and rightfully so, however why doesn't someone mention something about a negotiation about rewarding some of the sales proceeds to the owners of the copyright. I'd say it would be a pretty good thing to get some money from use of low res images. I have nothing against people wanting to remove their images from the website but why not try to make some money instead. I thought copyright laws were less about theft and more about compensation anyway.
Edit: It looks like the format is based on a Flickr arrangement. I'm not entirely sure if the products being shown by the poster are actually controlled by them. At this page merchants are encouraged to "use" the poster's collages as a sales tool. So, if the Pbase image can be identified with a price back to the original Pbase member, it maybe a source of revenue or at least advertisement. I know this doesn't absolve the original taking of images without permission...I'm just saying some of the more commercially minded here might use it as a tool.