> Most commonly for newly launched things it means someone with an @company email has tried the tool (even if they didn’t pay)

The current growth hacking play is to have people look through their personal network to find friends who work at those companies, then to have those friends say they’ll try the software

So it’s unlikely not even organic signups. It’s being pushed to friends and friends-of-friends who are unknowingly being used for their company affiliation.