In defense of the web page footer

I just discovered Nautilus,, an online science magazine that covers one topic per month.  Simple, but it took me far too long to figure out that last sentence.  The “About” link in Nautilus’s footer led to the answers, but some links just don’t want to be clicked…
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How not to waste disk bandwidth

In the Windows 7 search boxkeywords are case-insensitive, but Boolean operators are case-sensitive.  Typing

System.FileName:~=".doc" AND datemodified:‎1/‎5/‎2016

works fine. Typing

System.FileName:~=".doc" and datemodified:‎1/‎5/‎2016

doesn’t given an error message or a warning — it just burns a lot of disk searching and finding nothing. Live and learn!