Comment by ben_w

#2 because they're humans and humans act emotionally — it's entirely possible for them to just go "aaaa" like all the people in comments sections do regularly.

#3 famous people do seem to have some control over their likeness; I don't know how real that control is or anything about how it works, just that it looks like this from the outside. IANAL, so treat that as a claim of analogy not literal.