Intentionally masking hate speech with misspellings

I am curious how the automated punishment system works in cases where players are intentionally misspelling a word to (try to) avoid the system.

For example, in my most recent game, an ally used the word "%%%oot" several times. I think the intention is pretty clear. I reported him for hate speech, but I know this is a mostly automated system. Would love to hear Rioter feedback/be linked to something from them that talks about how often they update the system to catch intentionally misspelled words.

Thanks!