That would contradict tye’s explanation:

Capturing in a regex imparts a performance hit because it means that a copy will be made of the string that the regex is being applied to (which makes it a worse performance hit when matching against really large strings – one of the worst cases being running a lot of little regexes with capturing against the same huge string, something a parser is likely to do).

I don’t see how what tye said would apply if perl already behaved the way I said it should.

Makeshifts last the longest.