This wasn't much of an answer to "how", just restating that "we have a way to do it, we promise!". Could you give some explanation as to why it would be close to impossible to create enough reports to have them actioned? What markers do false reports have? It seems you only collect some free form text, and I can't imagine any way you could tell a good fake from a real report. So to a business, driving out a competitor out may very well be worth the cost of a few unscrupulous internet warriors.