A question for the more security-aware types out there

What, exactly, might someone's motivation be for signing up for a social networking service with an email address that isn't theirs? Not only do you not get whatever notifications or what have you that you might want, but when the person who actually uses the email finally realizes that there's an easy way to stop the flood of messages labeled "Orkut", it's the work of five minutes to reset the password, delete the profile, and redirect the account to a dummy email address set up expressly for that purpose.

So...what *was* the point of that, exactly? Just see how long you can get away with it? Given that the pictures associated with the profile were of a fairly attractive girl, perhaps it was a spam account the person set up in hopes that any retaliation would be directed against my address? Any other motivations I'm missing, here?

A question for the more security-aware types out there

What, exactly, might someone's motivation be for signing up for a social networking service with an email address that isn't theirs? Not only do you not get whatever notifications or what have you that you might want, but when the person who actually uses the email finally realizes that there's an easy way to stop the flood of messages labeled "Orkut", it's the work of five minutes to reset the password, delete the profile, and redirect the account to a dummy email address set up expressly for that purpose.

So...what *was* the point of that, exactly? Just see how long you can get away with it? Given that the pictures associated with the profile were of a fairly attractive girl, perhaps it was a spam account the person set up in hopes that any retaliation would be directed against my address? Any other motivations I'm missing, here?