Whoop, whoop! I know this is a little off-topic, but how many campaigns even exist anymore?
19 signature campaigns that are paying in Bitcoin according to this thread:
https://bitcointalk.org/index.php?topic=615953.0Although, I believe one of the signature campaigns has recently stopped so I would think it would be 18 signature campaigns. If you have the interest, and the time you could look back at that thread, and establish the highest amount of signature campaigns at one given time.