Claiming that the number of job postings mentioning Jupyter has decreased, so Jupyter is no longer popular is not something a company in the data space should do. It is just embarrassing.
Wtf
Still skeptical about the data source. Analytics datasets always seem to undercount the most recent few data points.
It's like publications saying "research discipline X is gaining traction in recent years" based on search matches in PubMed, but not normalizing for the total number of articles submitted increasing.