That's true of every social media platform, everywhere, before an election. Most social media companies are US companies or frequently visited by americans, but you'll find the same shit happening on foreign platforms too.

Why? Because it works. A lot of people end up voting based entirely on what seems to be the trend, so if you flood their feeds with enough propaganda, they flip.

And people with extreme views don't care about that, it just makes them feel like they're not alone and thousands of other people share their views and reinforces their narrow view of the world. And they feel entitled to be platformed too, because in their eye, everyone's going crazy and the world is really about to end. Just like a religion. Religious people genuinely think you're going to hell, no matter how sane your argument because their beliefs are more important than reality, because God is reality to them.