https://www.pcgamer.com/ubisoft-outlines-its-plan-for-punishing-toxicity-and-team-killers-in-rainbow-six-siege/

In March, Ubisoft announced plans to combat "chat toxicity" in Rainbow Six Siege by implementing a system of bans for players who use hate speech, including racist and homophobic slurs, in the game. Today it elaborated on its goals in a blog post, saying that it aims to "track negative player behavior, manage those that behave poorly, and eventually implement features that will encourage players to improve their behavior." 

Chat monitoring has already been underway since mid-March, but Ubisoft also wants to give players the ability to more directly moderate their interactions by allowing anyone to mute individual players' text chat in addition to voice, which has been silenceable for some time. An automated chat filtering system that will censor text chat based on a list of offensive words is on the way as well; it will also track the number of times players trigger the filter, and Ubisoft "will take action as necessary for players that are intentionally having a negative impact on other players' gaming experiences."