Speaking as someone who refuses good money when it involves working on Windows, because no one's offering me enough money for that level of pain...
Seriously, if you claim that a drawback of Windows is that it doesn't allow multi-user login, then it's hard not to ask "WTF are you talking about? Really, what are you talking about? Are you stuck in some circa-1995 reference frame? That doesn't even make sense!"
So I'm not sure that it was a personal remark. It may have just been honest lack of comprehension.
Seriously, if you claim that a drawback of Windows is that it doesn't allow multi-user login, then it's hard not to ask "WTF are you talking about? Really, what are you talking about? Are you stuck in some circa-1995 reference frame? That doesn't even make sense!"
So I'm not sure that it was a personal remark. It may have just been honest lack of comprehension.