About 30 offered data screenshots and earnings data. Another 30 didn’t post screenshots but discussed earnings clearly enough to infer earnings. The rest were people who never mention earnings but based on my own knowledge of claps, expected read time, and other factors that are highly indicative of significant earnings. I also have had people reach out to me after various earnings surveys I have done who are top writers in a niche, state their own earnings, making it easy to identify how much the one or two writers in their niche are making. The data collection is ongoing and not just for this article.
But as I said, I was just doing my best to estimate.