It’s summer time within the northern hemisphere. And as holidaymakers journey to unfamiliar locations, meaning demand for on-line buyer opinions. Wish to discover a restaurant that gained’t give everybody meals poisoning, or the proper lodging for a metropolis break, or a mosquito repellent that truly works? Whether or not you’re looking on Tripadvisor, Airbnb or Amazon, you’ll nearly definitely be guided by opinions from different individuals. Must you be?