The thread of loan was updated on 9 Nov 2020 to canceled (http://prntscr.com/10fi1u8) maybe this is the time when the new account owner started posting on that account.
Coming to the password, Which was initially changed on 15/8/2018 and parodium said after some months loan was paid then the next password change was on 19/11/2018(i think this is when the original owner changed the password).
I also think after getting the account back it was sold again on or off the forum.
Smokerface seemed in need to be in a campaign and was trying hard to be in but I can't find parodium trying as hard as smokerface with his account so I don't think pardoium is smokerface.
If smokerface is parodium then he would want most or all of his accounts to be in some campaign or at least try to but this doesn't seem to be the case.

The history of "Smokerface's" trying to sell the account should also be taken into consideration which is why tags should remain.
Edit: SmokerFace should have no problem trying to sign a message from his old address to prove his ownership.