You can join PD campaign in your current status (member status), you get 0.0004 per post for a maximum of 400 ones per month. They don't pay the highest but they are one of the most established campaigns.
actually they are, UpDown isn't paying I think..
After gone for a month, now they're closing their sig campaign. Payment is done for some members now
so PrimeDice is the highest paying signature campaign?
I think they and 777coin are the only remaining pay per post campaigns
PD is not the highest paying campaign, they are actually one of the lower paying ones, but they are very reputable, which some people (myself included) would consider to be more valuable then a higher paying campaign.