Sorry, Clinton--you're wrong.
Just because you walk down a public street, other people don't have the right to follow you everywhere. Just because you park in a public lot, others don't have the right to leave notes on your windshield. Just because you post on a website doesn't give others the right to follow your every post with slander or name-calling.
Whether you can stop them or not does not change the nature of what they've done. Wrong is wrong.