Who owns the filename? If the user owns the filename, than it is incumbent on the system to be able to handle arbitrary names. If the user doesn't own the name,

Who owns the filename? If the user owns the filename, than it is incumbent on the system to be able to handle arbitrary names. If the user doesn't own the name, then the system must not expose the name to the user. c.f. filename extensions. If a human script is read top-to-bottom, then the computer should handle that without complaint. This may not be possible in all cases immediately -- there's far too much Unix braindamage weighting the world down to throw it all away at once -- but we should all be trying to liberate humans from the dead hand of New Jersey.