I mean, they added “bash scripts you find online”, which are only a problem if you don’t look them over or cannot understand them first… Their post is very much cemented in the paranoid camp of security.

Not that they’re wrong. That’s the big thing about security once you go deep enough: the computer has to work for someone, and being able to execute much at all opens up some avenues of abuse. Like securing a web based service. It has to work for someone, so of course everything is still vulnerable at some point. Usually when private keys or passwords are compromised if they’re doing things remotely correctly, but they’re still technically vulnerable at some point.

Floating point error? Yeaahhh no. No. Just… no. That is NEVER as big as 0.01 unless the number is also insanely massive.

The error is relative in scale. It’s not magically significant fractions off.