I have had that happen a few times for whatever reason. I wasn't using any obscene word I was aware of in the languages I know. I belonged to a forum years ago where somebody chose the name Oni which means demon in Japanese but in their language, it meant something totally different. I asked why they thought they were a demon? They took offence and I explained what it meant in Japanese and they explained the meaning in their language and apologized for being offended. I apologized for not considering so many other languages.