Yeah I can understand that the Chat filter can be annoying sometimes but we all know why it is the way it is. However I'm looking into some phrases that are common and are still getting filtered but sometimes context can change the meaning of a word which is then hard to filter some cases but not others. This is on my radar, I am just going about it cautiously so it may take time.
I don't want to say tell me the words you want to say that are getting filtered because then these forums would be full of one word posts but if there is something really important that shouldn't be filtered try say it a few times in chat in-game and say something like "Mr. Ironheart this word should be allowed" I see all in-game chat and go through it daily so I (hopefully) will pick it up.
Just remember, the filter may be annoying but it is there to help us keep everyone safe.
Thanks for understanding!