The title Probably doesn't say it is a signature campaign, nor I can find any signatures in here, but it can't be some other campaign if it pays for posting. A lot of confusions here.
A campaign with nothing else then a joining form and a spreadsheet. No specific rates, no rules, not even a proper manager. And the most surprising think I guess is that it says you can join even if you are in a signature campaign already.
OP obviously needs to clear a lot of things here, or the only place this campaign belongs to is the trash folder of this forum.
Edit: Just found OP offering Member signatures for 0.005 BTC ($49+) Here:
https://bitcointalk.org/index.php?topic=2851074.0 Isn't that insane?