alt Hacker NewsNot just users, but number of companies. So many startups list out all the companies using their products, who also happen to be an army of startups. I doubt they're all using each others products, just doing what they can to juice each companies perceived metrics.
Supposedly B2B SaaS companies in YC have been known to enter into agreements to “buy” each others’ products so they can all book more users and revenue despite a single dollar not changing hands.