Why is it recommend not "use locale"?

Do you know what "use locale" does, its purpose/function? In other words have you read locale/perllocale?

See use locale broken?, About \d \w and \s, https://metacpan.org/module/perllocale#SECURITY

In reply to Re^3: Chomp doesn't work by Anonymous Monk
in thread Chomp doesn't work by M15U

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