the e-mail address is optional. (to receive the results in May )
Yes, i didn't give my email, i wonder why the results are to so given by email only ?
You couldn't post the results publicly?
I believe that is so responders can view it before everyone else to check things. Also results would not be published publically until ready for publication as if it is going to be put in a paper then the work is of greater value to that journal if it is exclusive.