[benjaminl]

LastPass uses local encryption to enable LastPass to have Zero knowledge of users passwords. This means that user's passwords aren't passed in the clear even inside a TSL session.

So LastPass isn't the password manager mentioned in the post.

[chinathrow]

But the server might have sprayed out your login credentials while travelling through Cloudflare.

[Elizzy]

I think he's recommending it, more so than assuming it's what he uses.