And ask the users who aren't active why they stopped being active. What do you think?

Because their content is either ignored or overlooked.
Nowadays there are too many content creators, but only a few content consumers on the Hive blockchain. And the automated curation makes it even worse. Many of the curators do not even see what they curate. The average number of comments per post is 2-3, and most of those comments are bot comments. The real human interaction is rare on the Hive blockchain. Many people become disappointed. This is mostly why people are stopping being active.