For example, Facebook has a suicide detection algorithm, where they try to intervene if they think a user is suicidal (Inside Facebook’s suicide algorithm: Here’s how the company uses artificial intelligence to predict your mental state from your posts). As social media companies have tried to detect talk of suicide and sometimes remove content that mentions it, users have found ways of getting around this by inventing new word uses, like “unalive.”
I would like to add that not just facebook who has taking noticable actions, but also TikTok, where they seem to be more transparent about it. TikTok has this algorithm where they can detect harmful words in a search bar, and on top of the results, instead of getting what you searched, they will provide links that allow people to seek help.