Do orangutans throw their poo because they are more primitive than us or because they feel more rage?

They don't often feel rage. I guess it is a gesture of protest. Is something stopping you from throw your own poop back at them? No. That would be the way to make friends.

I was goin gto say it's because they are less intelligent than us and so less civilsed, but it's a lot better than pulling a gun on someone.

Did not think Orangutans did that, though it was Chimpanzees and they do it was they like to I guess.

I was going with stricter gun laws.

I didn't know they did, perhaps they were marking their territory

Wow, just visit a zoo and ask them.