duckduckgo/duckduckgo — comment on commit d1e9151026ba1d00b1770d7374e4fe668ba8fbfe
File: lib/DDG/Request.pm line 4
By h3xx:

`use utf8` only has an effect if you're going to be using non-ASCII characters in your variable and function names. Otherwise, it just slows down the compilation process (slightly) by adding extra checks for utf8 strings.