This might be an attempt to throw away your funds because their are limitations since the account is already enrolled and btc address added and lauda is not a dummy, i just made my own points though i might be wrong.
you are totally wrong. do you think lauda can catch the account only because of changing the password?
Of course no but when you request change of Bitcoin address to receive payment,you will be caught.However there is no rule in that campaign that barred participation from bought account as long as new owner maintain the quality of posts.But I dont think op should sell his account as he can himself earn lots more with this campaign