Only 3.5% of all Twitter users post original content. 25% includes re-tweets and replies.
Is that 3.5% of total users or monthly active users? If the former, you totally ignored the parent comment's point.
It's in the link [0]referenced by parent: user activity June-Sept 2021
[0]https://www.socialmediatoday.com/news/new-study-shows-that-2...
25% is actually really really good. Its just above the 80/20 pareto principle. Prices law probably makes more sense here but the point is still the same, pretty much all platforms where you are publishing you'll see a similar distribution.
Pretty all the users except a few contribute little to nothing and a very few contribute the most highest value output and accumulate a lot of value (followers/influence).
Usage (consumption is what you are looking for).. like monthly active users..