This is a public website and it's cached and retained by many servers all over the internet. Even if you deleted your comments at the source there's nothing preventing me from going to Google or The Internet Archive or whatever to find your old posts.
You decide what you make public, once it's public you can't close Pandora's box again. That's just the way things are now.
You decide what you make public, once it's public you can't close Pandora's box again. That's just the way things are now.