This is a hypothetical situation, which MIGHT become real soon.. (Entirely on accident.) So, there's this super easy, but boring/long, method to obtaining not only emails, but email passwords. In large quantities. But like all kinds of mailing lists, these are not always valid... However, I am 99% sure that at least 80% of the email/pass combos were valid at one point in time, although such may not be the case in the present. (People change emails and passes sometimes for a variety of reasons, obviously) What would be the ethnical and legal implications of such a thing? (Obtaining such lists involves the easy but tedious work I mentioned above, but as far as I'm concerned, they are easily publicly and legally obtained currently. Of that I'm sure.) Again, this is all in-the-near-future (maybe), and as of right now is not true and may never be true.