Toxicity is toxicity, there shouldn't be a "ladder" system of it.
It's all lead to the same conclusion, which is directed to hurting someones feelings. There shouldn't be "different degrees of toxic", it should all be on the same level, for some people might find something that isn't as offensive to someone else, to be really offensive to them.
I've made this point in a comment with a boards Moderator, stating that I can easily call someone an "insect" to avoid the chat restriction/ban, because my intention is to personally attack them. It doesn't matter on how I attack the player, as long as I'm being derogative and get my point across. It's a word that my friend personally uses to deliberately belittle someone, he also uses phrases like "Go drink some mercury", which is his way of saying "Go off yourself". My point here is that the system is abusive, and shouldn't have a ranked system on which is classified as more toxic than the other word that has been previously used.