I'm afraid the answer is no BJ. I've seen people ask many times. One of the things to remember is that what you post becomes public material, up for the consumption of the masses.
Unfortunately LS will only remove references to specific people or other such references.
The bulk of your posts will stay up.
If you're really concerned, best thing to do would be stop using that account and come back as something less obvious. But you can't get rid of all your previous posts.
Please note: The suggestions and advice offered on this web site are opinions only and are not to be used in the place of professional psychological counseling or medical advice. If you or someone close to you is currently in crisis or in an emergency situation, contact your local law enforcement agency or emergency number.