No.
We would then have to be careful about everything that is said. That is such a relative term and many people are easily offended and some are not. It would be a stuff show.
What if someone would use the word harm to you. what you will doing next ? ignore or report to badspot have power ban to someone for save your ass.
Words often do not have any physical properties and shouldn't be able harm you in that sense. It may harm you emotionally but that is already a rule: Flaming. And, can be bannable