Do post a positive review when you want to thank for a service or good customer service and dispute it if you think otherwise.
Make others aware of unacceptable treatment you received from health service providers, be it private or public or local government or council departments.
If you an ebay user and want to let others know what happened to any transaction of yours post your extensive story with all details of the transaction. Eliminate untrustworthy ebay merchants by stating your point.
Write about video games you have played. Let others see your review before they purchase.
Fight with unfair parking charges or public services provided by councils, management companies, estate agents, etc.
Customer complaints are a powerful tool and ususally result in a response. This can only work miracles if used by the customer service managers in order to improve the services provided.
By writing your review you not only try to stop mistakes and bad attitude towards customers but also you raise your voice on the future of reviewed company.
Allow your complaint or compliment to be widely visible to other customers and remember it all helps to make a right decision on whom to choose to deal with.
Point out difficulties you might have experienced while using online services like internet shops, nuisance emails, spamming websites, malicious software.
Help up fight dishonesty and lack of customer service by posting your opinion about suppliers, service providers and companies.