Considering that it's an emoji, yes.
why not lol
People have the right to express poop!
It's so widely used that you can't make it go away...
it should deffinataly be in that category!
Its so great why not?
Why not. Everyone poops.
sometimes you have had a bad day what could be better than a poop EMOJI with a face? (don't start debating that.)
Hardly appropriate for children