Not a clue... but I'm not a fan of the "lotus boob" and it's not because of a fear of holes -- it just doesn't look right.
As for clusters of holes, I can look at them all day. Perhaps it's not the holes so much as the idea of some creepy-crawly being in there that induces the fear?
"The weakest soul, knowing its own weakness, and believing this truth that strength can only be developed by effort and practice, will, thus believing, at once begin to exert itself, and, adding effort to effort, patience to patience, and strength to strength, will never cease to develop, and will at last grow divinely strong."
- James Allen