Leaving poo poo on things is a popular passtime for many dog people.

'is a popular passtime for many [] people'

Fixed That For You.

Interestingly for the ethologist, they have habitats: for example, the bottom comments in the stacks in YouTube...

I like my comment, and it was a good excuse to work with new tech, why poo poo on my comment?

Because your comment was pretty objectively inappropriate and improductive - gratuitous. Or did you mean something productive that we should have guessed?