The word that keeps coming back to me, when this pro-and-con progresses, is "territorial." The territorial approach certainly gets and holds attention; on one level, it is satisfying to the people who are doing it.

Territoriality has its limits though. I guess you don't mind driving the onlookers away as long as your claims and possessiveness are your first priority?

Something there is that doesn't love a wall,
that wants it down....