Vote brigading is massively coordinated online voting. It refers to the practice of affecting reviews or scores on websites that feature crowdvoting, such as online stores or review websites, by calling on large numbers of people to submit reviews, thus boosting or decreasing ratings artificially. This may be done for political reasons; for example, to harm the commercial prospects and credibility of films dealing with controversial or sensitive subjects. [1] Vote brigading is a form of participation bias, which can decrease the reliability of the aggregated score.
A campaign to make it the most disliked trailer on YouTube was initiated in the days leading up to its unveiling, by fans of actor Sushant Singh Rajput, who died by suicide in June. Sushant's fans have been propagating the conspiracy theory that the actor was ostracised by the film industry, most notably by 'insiders', which drove him to suicide.