Re: The last remaining issue in the Sieve variables draft

Arnt Gulbrandsen wrote:

> Alexey Melnikov writes:
>
> > Does anybody have any opinion in support or against this change?
> It seems reasonable to forbid them now, but add a note to implementers 
> that a later extension may change this to allow them, and mention part 
> numbers as possible motivation.
Allowing them later will force people to change their parsers, I would 
rather avoid this. Is there any particular reason why you think this 
should be forbidden?
Alexey