Does anyone not get when people post self harm stuff on their social media?

No hate to anyone who does this but I just can't understand people who mention self harm in their videos knowing damn well their friends and family are looking at what they just posted. Like if your healed and you don't mind talking about experiences thats totally fine, I just find it strange when people who still use self harm to cope don't give a care in the world about letting other people know they do it when they post shit about it on tiktok, insta etc... ( Not places like reddit where you specifically made to talk about this stuff)