> A random website? Absolutely, 99.999% of the Web is safe. But we're talking about a site which is specifically compromised with malware.
Well, we don't know that, actually. The info given on the PE site say that the attacker gained access to the server and modified the database. Do you have proof that it's serving up malware to visitors?
In any case, it's an odd situation and an odd response from Project Euler. It doesn't seem like a complicated enough site to get hacked in a mysterious undetermined way.