secondly i'm not about to post any password found on another blog, forum, etc without knowing the origin. just because it's on posted elsewhere doesn't mean it correct. if said password was incorrect and people were relying on it, it just causes more fustration when the presale sells out and they can't get tickets because of bogus info.
i have zero sympathy for any fan of band who routinely uses presales like Wilco and Interpol and isn't willing to take time to sign up for the appropriate mailing list, be it venue or band related. if you don't want to be spammed, then use a seperate gmail account for such lists. it's why al gore invented them.
and if its such a huge concern about how information is sent out. then directly contact the bands management, the promoter, etc to voice that concern. posting such concerns in a public forum is going to allow to become open for discussion.