These aren't non-technical users - a lot of these are long-time UNIX/Linux sysadmins. It's important to note that, especially in large environments, has differ

These aren't non-technical users - a lot of these are long-time UNIX/Linux sysadmins. It's important to note that, especially in large environments, has different skill levels. I know a guy that can go deep into analyzing a kernel dump and figure out exactly what made some obscure application crash, but god help him when it comes to doing basic functions on his Windows PC. Being good at your sysadmin job doesn't always correlate with correctly identifying shady sites.