Okay, figured it out. One has to FIRST, be signed it to one's Google account; SECOND, join the Google accessibility group (one of the links at the top of the page - do it in a new tab so you don't have to retype everything, for God's sake!); and only THEN, can you submit!

This also means, that if I weren't complaining about this lack of accessibility for my second Gmail account, but rather my first, I'd have a bit of a problem, since I wouldn't be able to join the group. *is flabbergasted at Google's privilege and jackassery*