But SignWriting is not sign-language: Many people who
are deaf and use
ASL (and, I presume, other forms of sign language) are unaware of and
have no interest in SignWriting as being deaf does not result in an
inherit inability to communicate using more common written languages.
As far as I am aware SignWriting characters do not occur in any
standard character see, further complicating use. I have no
opposition to supporting SignWriting, but Wikis in SignWritten
signlanguage probably should be regarded as any other conlang projects
are, and certainly not regarded as an accessibility effort.
This is my concern as well. From what I can tell, SignWriting is not
very widely used (I stand ready to be corrected if people can supply
evidence to the contrary), and is almost certainly not used as the
sole (or even primary) form of written communication for anyone. It
seems to me that SignWriting is a very useful tool for learning and
teaching sign language, but that's about it.