I did it, I used my little used gmail address to limit the spam. When I did an anti-Obama petition I got lots of left-wing "we need your action" spam. This one has a checkbox, checked by default, to apparently allow other Email messages from the White House. I unchecked it, we'll see. I had to follow an un-subscribe link to get off Obama's spam list.
This has a long way to go! Spread the word, well below the number of signatures on the other anti-Trump petitions pending.