Answer:
Yes, as long as the review or testimonial is the genuine view and opinion of the person who has provided it. Reviews and testimonials cannot be created by businesses to provide fake support for a product or service. Businesses also must not use methods to influence customers to post only positive reviews or refrain from posting negative reviews. It is also a breach of the Australian Consumer Law to selectively remove any reviews, especially negative ones, unless they are clearly offensive or clearly untrue.