Numbers for array names run silent with strictures

Question

Why are array names with numbers treated like predefined globals?

perl -Mstrict -wle '@2014 = 3..6; print "@2014"'

(no warnings here)

Answer 1

From perlvar:

Perl identifiers that begin with digits, control characters, or punctuation characters are exempt from the effects of the package declaration and are always forced to be in package main ; they are also exempt from strict 'vars' errors.