To fully answer your question. The Wall of Roe is basically a troll tactic against Lalafells in which there were a lot that would like to AFK in certain spots. The Wall of Roe is a group ( or just a series of bots ) that block the area. Then it got to a point they complained super hard they couldn't AFK in "their spot" so it farther reinforced them to do it all the time and in multiple servers. Posts on here and on reddit were made about this because the Lalas got so angry.

In short....no one OWNS a spot. If your "spot" is taken...just move over a few feet. Problem solved.