If you get a chance to join good paying signature campaign than may be around 0.015 btc per week for tremandous of post you have to make on that whole week. Its better you put effort in quality of post and apply after you reach full member atleast.
0.015 is good price but i would agree and for 0.01 per week, 20 to 30 post
Full members have possibility of avatar renting this is also something very interesting.