That's the inevitable result of not actually believing in anything and having all of your actions dictated by what's the most funny or shocking to you. When you have no bedrock foundation of ideals that you know are true and guide your actions, it's very easy to just chase the next thing. Being a contrarian or malcontent for the sake being contrarian is extremely prone to this, as you're just seeing what the normie side is and taking the opposite one without much thought as to why or whether it's actually right or wrong. Do that enough times to where it becomes your default reaction and you'll soon find out you don't actually have any real values or believe in anything solid, which makes you very easy to manipulate into espousing what bad actors want you to. 4chan becoming what is is now was baked into the cake from the begging. In order to avoid it, the majority would have had to be willing to have real beliefs and values they were willing to stick up for and not waiver on because they're unpopular, unfunny, boring, lame, or too normie. But if they did that, it wouldn't have been 4chan. This was inevitable.