The post above me made a great point. If you put account under rent, campaigns will not accept you because you are not the original owner of the account. The highest payout campaign right now is BitX and they are charing 0.0014 for senior members. If you post 3 posts a day for 1 week. It should be 0.0014 times 3 times 7 which is 0.0294 which is not 0.04. Which campaign are you talking about?
BIT-X is the highest paying campaign that pays per post but there are higher paying ones that are smaller, more selective, and have stricter rules. For example, CoinRoyale pays senior members and higher 0.04 BTC for a minimum of 20 posts per week so 3 posts a day for 1 week should be enough. There are others that pay slightly lower than this too including FortuneJack which pays 0.03 BTC for 25 posts a week and OcupyCoin which pays 0.1 BTC for 50 posts a month.
A list of all current signature campaigns can be found here.
1. You would have to keep reapplying everytime it gets rented because you have to change the bitcoin address everytime.
2. Since you have to change your address, the signature campaign manager may get suspicious and disqualify you to the campaign
3. If you are caught you could possibly get negative trust on the account and it will be worth less than 0.3 and the OP could default on the loan
Also if OP doesn't sell his account, He may kicked from the campaign due to inactivity
ALSO, if you earn 0.04 a week and you are getting 0.04 a week you are making no profit. I suggest you just sell the account instead.
