If the category exists as a story category on Literotica, then it's going to be a category for the contest. The whole point of the survivor contest is to write new & original stories in every category possible. It would be going against the spirit of the contest to remove four categories from the contest that exist as separate categories on Literotica because a participant wants to put stories in non-illustrated or non-audio categories and count them as part of their score.
You are free to add an illustration or audio to your stories if you wish and request they be put in whatever other category, but if the site owners grant your wish, that story counts for whatever category it gets put in, and you still have to either write something for the audio & illustrated categories or get an immunity for them. Odds are you will win at least 2 immunities in the space of a year, and making audios or illustrations for those categories are really not as difficult as people sometimes try to make them out to be.
The point is not to eliminate the illustrated or audio category from the contest but to simply allow adding illustration or audio to other categories... ie. submitting an entry to BDSM enhanced with audio or illustration. We would still have the illustrated and audio categories to fill for the contest, but if a contestant wants to take the extra steps to provide illustration or audio to an entry in a non-illustrated or non-audio category why not allow it?
Based upon your response above (highlighted in bold by me) it appears they would be accepted as contest entries provided they are posted that way. I think that is fair.
K.