If you're interested in joining their efforts, you should drop in and contact one of their staff. That's how it's stated on old computer punch cards. I heard spindle means to roll up in this case.
Ad banners are just annoying crap.
Link banners though, are different. Link banners always have some relevance to the page and have real content on the other end. Filter the Ad Banners, but keep the Link banners WebWasherProof. The link banners wouldn't be filtered like the ads. But they are not banners.