User blog comment:ArtDraw12/Biggest plot holes, goofs, mistakes & inconsistencies in Total Drama series/@comment-3394399-20161110002108/@comment-11883116-20161111135129

Exactly. Keep in mind for us they are flash designs with huge heads. In real world it's harder to notice someone's mole because our faces aren't the biggest part of our body and aren't filled with only one colour. In universe, it's as hard for them to notice as for us. Plus, it's even harder in the dark and elimination ceremonies take place at night.