Why on earth would you need to write such a list for hospital visitors? If you don't want people visiting, don't tell them to visit. Save yourself all this drama and just tell them that you do not wish to have visitors in hospital, and you will let people know when they can visit after you return home.

If they don't like that, bugger them.. The only people that will prolly not work for is immediate family, perhaps only grandparents.

In which case, tell them when they get there to wash their hands, not to come if they are sick or have a cold, and don't you dare apologise for breastfeeding your newborn!!

A list is way OTT in my opinion, and offensive. They are all adults, you're not a public swimming pool, and as such a list of rules pinned to the door insults their intelligence and your ability to be an adult and mother in control.
Speak up, use your voice and make your expectations known, but do it with some dignity and not the backdoor.

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