I wonder how they got the data. it says: "I found a publicly available list of all ProductHunt users, launches, upvotes, and comments."

but perplexity or google search didn't help me

Kaggle dataset with over 300k posts:

https://www.kaggle.com/datasets/alanhamlett/producthunt-user...

You can get it from Kaggle, but it looks like the dataset there contains only 10K products https://www.kaggle.com/datasets/undefinenull/product-hunt

"Whether this represents the actual number of products released on Product Hunt throughout this period is difficult to determine. The products and user data that appears in this analysis is based solely on the Product Hunt sitemap, and anecdotal experience indicates that not every product gets indexed there. But given the general smoothness of the curve, and the overall number of the products here (more than 70,000), it's as large a sample as one is liable to get."

>from 2014 to 2021