Some people here think otherwise. Apparently, if you're in a signature campaign, you're only posting for the money.
It's not true all the time. A lot of participants from Chipmixer don't post much regularly. Some of them end up posting 5/10 posts per week while they could have posted 50 posts per week to earn 0.0375; that's why Chipmixer campaign is so generous & so does the participants.
Here are some stats of some of the Chipmixer participants which you may enjoy & will help you to change your thoughts.
Week 135BitMaxz- 8
hilariousetc- 6
HeRetiK- 3
AdolfinWolf- 4
Hydrogen- 7
Stedsm- 4
jseverson- 5
Thirdspace- 3
Potato Chips- 1
actmyname- 3
ranochigo- 1
BitCryptex- 3
And some other haven't posted as well.
For your info, pay per post is 0.00075 BTC & the max post limit is 50.