I think it is fraud as well, there are also some internet laws that may get you too...I have access to a tool that can even impersonate a user clicking through a web site(it is designed to load test web sites before making them live)...with a little work I could have thousands of emails in a matter of minutes (just making up a really odd string and incrementing it by 1 each time I hit the page again)...would I do it, no...is it worth the work..? Hard to say...it is kinda like the using paypal or the like to get credit card transactions between two people strictly for the miles...it is illegal, but also easy to get away with...to each his own I guess...

I honestly think people have to put a value on ones time, if it take me an hour to get a few miles, it may not be worth my time...

I think this could go back and forth forever and if one ever did get caught doing something like this to an extreme, I think they could get sued real bad