All the chat filter does is hinder communication.

As if it wasn't bad enough in English, now that I'm back in South America and wanna type in Portuguese or Spanish in chat, basically half of the words on any given sentence are being censored.

The portuguese words for "ok", "hours", "hook", "custom", "friend" and "play(ed)" are just a few examples of words one might want to say frequently and can't because of this system. Do you have a list of possible offensive words in every language? If so, why are these harmless words being censored? If not, why even impose this system on the large part of your playerbase that doesn't happen to speak English or French? The amount of variables (slang, dialects, special characters that don't exist on every language ("ç" and "ñ" for portuguese and spanish for instance), and some others) are just too much for an AI to cover all of the languages the people who play this game speak.

If people want to harass someone and be toxic, trust me, they will, not only during the match. I have a private profile on steam and I've had someone look up my IGN, finding my social media and sending me unpleasant messages there. There are also countless instances of people being sent unwanted messages over PSN and Xbox Live on youtube. I get the intent behind the filter is minimize harassment, but when all it does is add an almost insignificant additional step for people who really wanna do it and harm other people's ability to talk to each other, is it even worth keeping?

I think if you wanna do something with the ingame chat, just remove it altogether. Maybe it would be less frustrating knowing there IS no possibility of communication via text ingame.