I'm happy to help my Linux using customers. Not a few of then don't "know ****!" as you say, which says a lot about the general usability of Linux.
A couple netbook owners I dealt with didn't even know that what they had was Linux. They'd been using it for months and hadn't noticed any difference, their apps just worked as they always have.
They came to me when they wanted to alter something and couldn't find "control panel" or "my computer."
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