this is a PUBLIC discussion. It can be seen by ALL Geni users (AND Google). You especially do not want to write your email address here, where spammers can see it. So you MIGHT want to delete your comment, and send a private message to the manager of this profile instead, or just ask that people comment here or send you a private message via the site.
Also, if you look at the profile again, you'll see a green box to the right, that says "4 matches in other trees". If you click that, you'll find 3 (of the 4) profiles DO have ancestors. So they might already be on Geni.