This biggest offender creeping into my feeds currently seems to be long form history videos. I'll be 10 minutes into a 90 minute WWII video and notice a completely incorrect pronunciation of something and realize what is happening. They're certainly getting better at fooling us. Especially when they speak slowly with a calm voice.

And that is a serious problem. That means those people are easy to mislead, and can be made to believe anything if you just put it in an AI video. I've seen people get upset or feel touched by what to me were blatantly obvious AI generated videos. It's as if reality just doesn't matter anymore. (See also the state of politics lately.)