Yes, guys who develop all day in Windows, look vaguely lost at a command line (constantly forgetting their place in the dir structure, not knowing the basics of rsync or scp, not knowing how to unzip a jar, etc) always call themselves Linux experts. Calling all Unix-like systems "Linux" is a common problem as well, unfortunately.

But I run into Linux "sysadmins" with all of the same issues. There's a real problem with a lack of competence in this industry, IMO.