I doubt most of this is foreign government influence campaigns. I think it's more that Twitter will pay you to post clickbait, and if you are in Africa or many parts of Asia the amount you can earn is significant.

There was some great reporting about Macedonian teenagers doing this kind of thing back in 2016 - https://www.nbcnews.com/news/world/fake-news-how-partying-ma... - it was actually the origin of the term "fake news" before Trump redefined it to mean any mainstream media coverage that he didn't like.