The thing is if you say something long, you might not know what you said wrong, and if you're in-game and in a hurry to say something, you might not have the time to thouroughy examine what you said. For example, if you say "Push it" at all in your sentence, you won't be able to say it at all.
Instead of saying "Please don't say that!" every time you say something wrong, it should say "Please don't say jadsfl", where "jadsfl" is the banned word.
Instead of saying "Please don't say that!" every time you say something wrong, it should say "Please don't say jadsfl", where "jadsfl" is the banned word.