-The Really bad Stuff
-....uses of words commonly associated with this behavior, as well as circumventing the boards filter by posting modified versions of said words.
We all know that the n-word means and the f-word is not fuck, it is the forbidden 6 letter one. Isn't typing out n-word and f-word respectively "circumventing the boards filter"?
Riot treats these words as taboo, the things that can not be said much like Lord Voldemort was in Harry potter. Context doesn't even matter i'd assume for these words can only be said safely though use of innuendo. They have powers much like magic spells, just uttering them can supposedly cause major distress in otherwise rational human beings. It is very very weird.