Holy shit. That's hilarious, although, yes, absolutely selfish and a horrible thing to do in general. It is amazing that they got away with that for so long, and continue to do so to this day, if so.
Although, is it really blocking people from purchasing the plot? Couldn't you just tab target or something? I know I've accidentally tabbed to an NPC/Object more than once, so someone has to be able to do it on purpose.