Unicode variants of operators shouldn't be an 'implemenation option'?

[moon-chilled]

The spec says:

Implementation option: A compiler may allow the following character sequences as aliases for other operators, punctuation, and keywords:
'≠' (U+2260) alias for '!='
'≤' (U+2260) alias for '<='
'≥' (U+2260) alias for '>='
'∈' (U+2260) alias for 'in'
'∉' (U+2260) alias for 'notin'

Obviously certain things should be implementation-defined, but imo unicode operators don't make sense as such; implementation-defined only really makes sense for things that vary across platforms. Personally, I would remove them entirely, but either way they I think they should either be there, or not.

[gingerBill]

This just added because I could rather than it be actually a good thing. It is subject to be removed.