What is "S€x"? Is that sex paid in euros?
It is something which is being normalized now on the internet, to use wordings and replacement words, so people can express themselves without fearing to be taken down by the algorithm or artificial intelligence doing some moderation work. For example, there are thousands or millions on people on Tik tok and other major social media who are using the word "grape" instead the word "rape".
It is also common for people to type down words composed by letters and numbers, when they want to say things like: sex, abuse, retard, idiot, among other words which could end up on their accounts getting flagged.
i have both seen in on YouTube and Instagram, more in YouTube, in the title of the video itself, rather in the content inside.