Just wondering

Why do people post pictures of their still borns or pictures of their family members in their coffin? I can't help but to find it disturbing.. I've seen it so many times on Facebook. One a woman was kissing her dead husband on the mouth and took a picture and today I seen a collage made of a stillborn and Snapchat filters on the dead babies face........ my dad was funny about me posting pics of him when he was alive so I know damn well he would hate if I posted a pic of him DEAD on social media. But apparently I'm alone on this Bc I've seen so many