"Where do the partially dead fit in?? There are a few people who are dead from the neck upwards, thus impairing their 'Mudcat' function.... does the whole body have to be dead?"

No, they can continue to contribute, but they will be strictly limited to threads on the following topics only:-

1) What is Folk Music?
2) Muslim men and their attitudes to non-Muslim women.
3) The search for a cure for Homosexuality.

which is where they mostly reside anyway, so no change there. :-) :-)