Fanbase Takeover

A Fanbase Takeover is where another fanbase or fanbases takes over a fanbase, Just like what it sounds like. It is typically done for a variety of reasons including the fanbase talking shit about another, The fanbase holding an opinion/belief that's opposed to another or simply just to have more fanbases on your side in a pinch.
== Huh? ==
So imagine this: You're in the Example fanbase and have been for a good few years at this point. You love the Example game and can connect with like-minded fans who you agree with. Then suddenly out of the blue one day, The entire subreddit for Example flips the script. There's a pinned message saying there's a new good opinion that contradicts the old good opinion, People are mass-downvoting anyone who disagrees with the new mainstream opinion, The fanbase starts acting completely different in every way imaginable and there are even Fanbase Trials going on. You check other websites and you see the same behaviors mimicked in all the hashtags, Servers and groups. What's happening, you may ask? That's an example of a Fanbase Takeover.
However, Most fanbase takeovers are more subtle and don't go with a whole pinned message or huge announcement. It's typically just the trolls mass downvoting, Being toxic and posting the stuff THEY like instead of what the fanbase originally liked. This attracts like-minded trolls and toxic redditors to help make it worse and fully kick out the original fans.
== Examples of Fanbase Takeovers ==
In 2018, The Roblox fanbase was essentially taken over by a group of Copyright fanatics, Leading to Roblox becoming the biggest source of copyright defenders and making it "Cool" and "Quirky" to defend companies. And due to this, Defending copyright and hating fangames is the new popular thing to do.
In 2021, WoW Classic TBC was released. A lot of people originally hated the microtransactions, Removal of /spit and more cringe right-click-report nonsense, But eventually the fanbase was taken over by bootleg Retail Stans who hate everyone who isn't as sweaty and doesn't use as much Twitch slang as them.
In 2021, The Deltarune fanbase was taken over by the combined effort of the Dangonronpa and Fire Emblem fanbases after Chapter 2 was announced before the next games they wanted in their respective series.
In 2024, The Gmod fanbase was taken over by the Roblox fanbase who converted all remaining Gmod players into copyright defenders and immediately started a Fanbase Trial in an attempt to convert the rest.