a large amount of IGNs are blacklisted because they are "offensive"

The names Chinchilla, Chinchillas, Misfortune, Looped, Sevens, Announcements, Chefs, Animate, Increased, and probably a lot more are for some reason blacklisted because "You can’t use language that some might find offensive."

Is this intentional or what, because I cannot see how these are remotely bad