)
Yes. it's a physical tangible thing: a huge sign that says "The real treasure was the memories you made along the way."
Tbh tho I won't even be mad. What is One Piece (the treasure) compared to the 1000+ chapters and 900+ episodes and 20+ years we've had so far with the animeIP.
At this point, having read One Piece when it first came out and finishing One Piece by the time it ended should grant you an achievement or something. People should be given medals for it, and they will mourn and commemorate those who didn't make it.
"Hey bro. Finally finished One Piece. I'll tell you all about it when I see you again."
You say to the unnamed grave with a wooden grave marker haphazardly made.