He doesn't really need to.  

In the CS community, it's well known that BSD is more stable, secure, and the best OS for critical infrastructure, while Linux is more friendly, flexible, and better for hobbyists or businesses that can save money (by hiring cheaper Linux fanboi rather than expensive real computer scientists).

The vending machine story is a great parable of why sometimes you really, really want an OS designed by electronic engineers to be secure and robust, instead of a hobbyist's toy that is beloved by hipster dot-com wannabe types and businesses that love getting a cheap version knockoff version of genuine, authentic Unix.

Let's bring the discussion back to MtGox.

If I was setting up an online exchange, I would use Red Hat Linux for the public-facing front-ends.

I would use Red Hat Linux for the database servers, both master and slaves. 

But for the critical stuff, such as the bitcoind instance, email, and SSL, etc. there is no choice except for the decision between FreeBSD and OpenBSD.  I'd go with OpenBSD for the firewall, and FreeBSD for bitcoind.  NetBSD for email.  My users would get nothing less than the most secure set-up available outside NSA.



The fanbois really should realize there is life beyond LAMP.