I don’t think most people take it so seriously.

It’s shorthand to denote that they’re not humans, and separate what you read from your own internal monologue. Because it’s a meme, it’s often done with haste and inconsistent. Although I’ve never met a toddler who talks in a manner like pet-net-speak.

Now that I think of it, I have a sincere question: do you find characters like Daffy or Donald Duck creepy? How about Scooby Doo?