In same vein, should the founder of the wallet decides to open a thread on any internet or cryptocurrency boards/forum and got to entertain multiple persons claiming to be owners to the missing wallet and especially in a situation where there's no means of identification that was found in the physical wallet in which the paper wallet was found in.
Yes, because there are manners to protect yourself. If I ever found a paper wallet on the street, and checked it had funds, I'd register to some Reddit / Bitcointalk / other forum with a pseudonym under Tor, and describe what happened. Strangers couldn't find me, and if the real owner noticed the post, he could provide enough evidence for me to hand it over (e.g., the town we both live in).