Basic Internet hygiene should have instilled in most users that any data put online is immediately out of the user's control. If it's on a self-hosted site, the

Basic Internet hygiene should have instilled in most users that any data put online is immediately out of the user's control. If it's on a self-hosted site, the contents are long gone the minute you hit post. If they're on a third-party site, it'll eventually be sold to the highest bidder when the site is either acquired, or goes defunct and the scraps sold off. There is no sanitation online.