When I was doing my research before the biggest win for defamation was from a politician. I also found an article (link below) about the system is abused but 90-95% of cases are thrown out and the defendants typically win.
Apparently the law was designed to be abused by government officials, to allow them to silence bad press reports about them. It's a reason the US and other countries doesn't respect any judgements made in Croatia - they are not viewed as having sensible or typical laws when it comes to protecting speech (based on what I read about it all).