you will not upload , display or otherwise provide on or through the service any content that : -lrb- i -rrb- is libelous , defamatory , abusive , threatening , harassing , hateful , offensive or otherwise violates any law or infringes upon the right of any third party -lrb- including copyright , trademark , privacy , publicity or other personal or proprietary rights -rrb- ; or -lrb- ii -rrb- in duolingo 's sole judgment , is objectionable or which restricts or inhibits any other person from using the service or which may expose duolingo or its users to any harm or liability of any kind .