Obviously, Instagram does not want you to automate engagement. Their HTML is a mess of randomly generated class names and deeply nested divs. The structure changes every deployment. Any script that relies on DOM selectors breaks within weeks because the class name doesn't exist anymore. But it doesn't matter anyway. Instagram can obfuscate their code all they want because code is for machines. But UI... The UI is for humans. A heart icon has to look like a heart icon. A comment button has to be.