The Internet has had to deal with trolls and cheaters from day one. If someone sends a packet that indicates they got a headshot in a multiplayer FPS, they could be cheating so we invented anti-cheat. If someone spams an email account claiming to be a Nigerian price, it doesn’t mean that’s true so we invented spam detection. If someone makes a blog post claiming product X changed their life, it could be an ad so we have ad detectors.
Year after year, people find new ways to manipulate online communities. The people who run them have an obligation to prevent them from becoming toxic.
Now we have powerful actors manipulating political discourse and suddenly the rules are different? It’s complicated but that’s what happens when you serve billion(s) of users.