Ok listen. My 5Head deduction is that the no sloths rule exists so that you get to keep your infinite supply of cute animal pics flowing, thanks to the rule itself preventing people from posting your true favorite animal.
If I'm wrong, move on. If I'm right but you deny my claim, may sloths with a gaze from the darkest of nightmares haunt your dreams for eternity. However, if my claim is right and for y'all fellow sloth lovers around, you know what to expect inside this spoiler box. BLACKLIST HEEEERE WE COME!