No, you miss the point. I have some number of email correspondents who, for better or worse, are stuck with ISPs that are listed on the SCBL from time to time. For example: AOL, Earthlink, etc. I am not about to whitelist the entire sending domain, but I would like to whitelist the addresses I expect to receive email from.
A common starting point for that list is addreses to which I have sent email, plus addresses from which I have received email that I accepted. I would like to upload a list of those addresses in bulk.
As time goes by, addresses on that list will become obsolete, and I would like to be able to delete them from the list. Paging through 35+ web pages is not my idea of the most efficient way to do this, especially if the one I am looking for ends up at the end of the list in sorted order.
I guess I don't understand *your* premise! Are you claiming that you never receive email from anyone at a large ISP that gets itself listed, but that you want to whitelist so that the email gets through without delay? (or even worse, doesn't get through because it is buried in a pile of real spam, not false positives?)