It's very valuable that HN allows throwaway accounts for these circumstances (unlike some other platforms where they allow only one account per person). However this doesn't help if the significance of a comment only becomes clear after it has been posted.
There is a lot of -- I mean a a lot of -- propaganda on reddit and HN. There are a lot of bad faith posters using throwaway accounts to skew dialog. I call em out when I see em, but it's pretty clear what's going on. 10 day old accounts posting in nothing but pro-China threads, or 1 day old accounts talking about how terrible Intel/AMD/ARM/etc. is.
