Re shift(), why do most people prefer it ? I mean, from a pure readability-based view... Isn't
$dict{$_[0]} clearer to understand as "the values stored in %dict with the first argument as the key" than
$dict{+shift}
When you read those two statements, doesn't the first one's meaning spring into your head more naturally ?
All in all, Perl's @_ and its $_N elements are burdensome in some cases, and don't look good whatever you do. I guess that Perl 6's argument declarations will solve many of these problems.
Re quotemeta, thanks, I understand it's a good habit. You make as little assumtions as possible about the input, which is nice.
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