Commenting on someones personal site is like stepping into someone elses house. If they don't want you to use certain words like profanity for example then don't use it. Its called respect. Then maybe they wouldn't have to moderate your comments. No you don't have the right to say whatever you want in a comment section.
Perhaps you really are an internet bully and your purpose for being on the site is to simply post abusive words towards the website owner. More likely...