A Pittsburgh lawyer who claims his reputation is being harmed by comments posted by purported ex-girlfriends on a Miami-based Web site has filed a defamation lawsuit against the site operator and her company in Pennsylvania state court.

On Thursday, plaintiff Todd Hollis sued dontdatehimgirl.com and owner and operator Tasha Joseph, a former south Florida freelance reporter. The suit also names as defendants several women who reportedly posted the comments and the company that hosts the Web site’s domain name.