Perhaps, but we study roman graffiti where people from antiquity did the same thing, like, I get that its bad and should not be condoned but tourists have been carving their name into this thing for thousands of years.
https://www.nps.gov/subjects/nationalregister/how-to-list-a-...
Such graffiti is only an artifact when it's purpose, history and other aspects are lost to time due to lack of alternative documentation.
In effectively all cases these days there is simply no additional value obtained from graffiti like this, unlike that of street artists doing murals or painting trains.