You only need curlies if you are using grep with a code snippet

The reason your example needs curlies is because the  and operator has lower precedence than the comma operator.   If you use the  && operator then a comma works. 

my @bintext2 = grep /$input/i && length > 20, @bintext;

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In reply to Re^2: GREP case insensitivity by jwkrahn
in thread GREP case insensitivity by italiansauce88

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