[Nasrudith]

That is already covered under libel laws but it calls for it to be untrue and malicious. A negative opinion is protected along with statements of facts.

Otherwise you have such absurdities as being able to sue for a bad review for "loss of profits". That is why the law doesn't try to protect them. Expecting to be able to sue just for damages sounds like the sort of thing which gets your country's judgements libel ruled unenforcible under libel shopping laws after a history of abuse.