As much as i know, signature campaign seem fair enough to earn some bitcoin.
Higher account rank --> higher you'll earn bitcoin
for rank lower than Full member, that's time to elevating the rank and quality of post.
if you can buy Staff or moderator account from bitcointalk you can earn more

like your say higher rank higher earn bitcoin
lol
that if you 'can'... LOL

better don't buy staff account, because you have to do their jobs...

lol whether staff or moderators existing accounts who want to sell it?

equivalent to a hero member if you are just for play a signature campaign
Hero member is enough to earn bitcoin from signature campaign, also some campaign that need sr.member above..

'maybe some mod'

even full member, you can enjoy your payment in signature campaign when your ranked is full member and up. Because full member rank can support colors and avatars. and some campaign need an account that can used pictures and colors to attract the investors, gamblers, and also the people who will exchanged their coins.
full member is not high enough in the signature campaign, minimum sr.member at least get 0.001
BTC/post it was very good and for the avatar also has paid a high enough
