For the record the fear is overblown, but to indulge you, you're using the least safe site you could possibly be using. Twitter, Reddit, Facebook will let you d

For the record the fear is overblown, but to indulge you, you're using the least safe site you could possibly be using. Twitter, Reddit, Facebook will let you delete your old content. HN doesn't unless you make a request and get a human involved. The feature may as well not exist if it isn't self serve.