I can't comment about speed, but I think that his security claims are a bit off. Now I never looked at Linux code or FreeBSD code (so it really can be that Fre

I can't comment about speed, but I think that his security claims are a bit off. Now I never looked at Linux code or FreeBSD code (so it really can be that FreeBSD has fewer bugs), but the question is if you will be hit by them. Application code tends to be the most dangerous code - it tends to not get stringent code review and tends to get less talented engineers relative to kernel engineers. So, in reality, if you use WordPress plugins, Linux security vs FreeBSD security is probably not relevant. Now let's say you secured your webapp. You wrote it in Rust. Now does it make sense to worry about OS security? Still not necessarily. Really, if you set things up right and apply patches as they come out, the chances of getting hacked are quite slim - is your site worth wasting a zero-day on? And if it is, its likely they'll find a zero-day in FreeBSD (or in nginx, or apache, or ...) Now comes the million dollar question - where is it easier to apply patches? Linux or FreeBSD? And this is one of Linux's big advantages - RedHat, Ubuntu, and to some degree Debian has a multi-year "stable" track, where you get security, and only security (OK, and non-security bug fixes) upgrades. Meaning, that its set up that once software is in "stable" (or LTS), its API is locked. If the PHP foundation decides that the future is version 7, I don't have to jump on the bandwagon and rewrite my code. RedHat/CentOS will continue fixing the old release for years. As a result, you can actually install upgrades unattended (yes, maybe it shouldn't be completely unattended, but you don't have to dread upgrading).