We all get those transactional (and sometimes marketing) emails that have "donotreply.com" in the reply-to field. Personally, unless it’s just a purchase receipt, I take offense to this. What gives them the right to email me, but ignore me if I reply to them?
Anyway, I came across a pretty interesting article over at Slashdot about a guy who actually owns donotreply.com, and how he gets all that email from people who accidentally reply to those messages. Turns out he gets quite a lot of extremely private information (especially from banks).
It’s pretty funny what he does with the information he gets. Here’s the full article at WashingtonPost.com