Social media keep ever lasting digital copy,it's a big problem

one of the biggest problems in the social media is that whatever people share or post, it keeps the ever lasting copy of it in the internet. if all those posts a person are collected and analyzed, it could reveal serious information about the past of the person impacting the person's future. therefore, privacy issue could be solved with twitter like platform with self destructive feature so that no digital trail is left. www.bablrr.com is just the right platform i think.