Since when is it alarming to complement another country's progress, especially when you're not enemies? I'm no fan of the CCP (and no Kiwi) but this sounds ridiculous.
What are you talking about? Reddit is a collection of smaller forums. If the subs you frequent have gotten too large/diluted, look for smaller ones or create your own.
You can't create a subfacebook and moderate just that piece, and nothing on the internet comes even close to being as brainless as YouTube comments.
So when should I use a VPN?
3. To watch US Netflix in <insert non-US country>.