Yes. I won't elaborate

Nostr is bad opsec :)

If public zaps and your node’s privacy is a high priority, then, probably. Depends on your nostr profile too (if you’re an anon va public figure vs real name pleb)

I wouldn’t consider most activity on Nostr to be particularly privacy-focused, but like most things, it depends on your priorities and threat model

Zaps are more private than buying a blue check, that’s for sure, but it’s probably not that hard to dox your node or IP address or something if you’re not cautious

That depends on your threat model, TKay.