Whilst answering questions, is it Ok to use functions/bits of code where the output will be different for some computers?
For example I was thinking about adding a new time type to PYKE where the input could be in the form natively used by the computer (see here)
%c - Locale’s appropriate date and time representation.
Tue Aug 16 21:30:00 1988 (en_US); Di 16 Aug 21:30:00 1988 (de_DE)
This means that the code would be valid on some running computers but not others.
A more extreme variation of this could be a variant of the as of now standard loophole, Using MetaGolfScript but using something like the MAC address as the identifier. This could potentially allow any program (pyth for example) under 7 bytes long to be a zero byte answer in MAC-lang, which executes pyth code with your MAC address as input.
Should this type of input be allowed by default?
(Note should not be an answer for Default for Code Golf: Input/Output methods because this form of input isn't a stream/form of input)