Spamming sites looking to harvest emails look a lot like the first in terms of presenting a form. That's the first thing I notice on the first page. The act of

Spamming sites looking to harvest emails look a lot like the first in terms of presenting a form. That's the first thing I notice on the first page. The act of clicking on the button means the user as committed some effort towards signing up and is more likely to continue whereas on the main page even if they have chosen to start the form they haven't quiet committed in the same way.