Right before the review embargo on Venom had even been lifted, terrible audience reviews started flooding social media. But some people's Spidey senses started tingling when they noticed stark similarities between the hundreds of complaints -- the most suspicious of all being the plugs trying to convince Marvel fans to go watch a movie about a drunk country star trying to bone Lady Gaga instead. It quickly came out that a splinter cell of Gaga fans was making fake accounts to ruin Venom's word of mouth and dissuade people from seeing it.
This practice is known as "brigading" -- the way too cool name for when gaggles of dweebs play at being the Cheetos-stained Algonquin Table of the internet by manipulating things behind the scenes and making everything worse in general. Sometimes vote brigading can be a force for (chaotic) good, like that time the British public came together and renamed a royal ship Boaty McBoatface, or when Pitbull asked fans to vote on Facebook for which store he should make a surprise appearance at and people successfully sent him to the most remote Walmart in Alaska. But mostly the tactic is deployed in the service of online harassment, like when fanboys and/or bots tried to tank Star Wars movies with not enough white dudes in them.