Personally I don't see a reason to ban any given word, if it is a word and it is in a (accepted/common) dictionary it means that the word actually exists, that is (or has been) used, that people (at least some) know its meaning, etc.
On the contrary, when you ban some words, they form a "list of banned words", and you actually focus the attention on everyone of them.
Think of all the old manuals using the old IDE/ATA concept of Master/Slave (and later Cable Select).
How many people were forever traumatized by reading those?