How long until "dog" and "woof" are blacklisted?

I'm seeing a trend of players using the term "dog" or saying "woof woof" as an insult in order to circumvent the IFS detection. I wonder how long it will be before those words are blacklisted. How far are Riot willing to go to punish "bad" words in chat? It will eventually get to the point where the only things you will be able to say are "well done" and "good job". Yet another problem with Riot's system. Every time you ban a new set of words the players will come up with new terms to use as insults and just keep going.
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