That's a link to an article where a commentator makes the same claims you do without actually showing where anyone has labelled TS as "sub-human."
Take a look at these two videos and tell me she is a vegetable.
http://web.tampabay.rr.com/ccb/videos/Terri_Big_Eyes.rm
http://www.blogsforterri.com/video/ConversationWithTerri.wmv