… if you run a SaaS, generally somewhere from 1 in 5 to 1 in 20 users are using you for real, while the others are mostly not using you.

That is a hilarious and believable stat. Has anyone published such numbers or is it a dirty secret about how many corporate licenses are purchased and never used by the rank and file?

I can personally think of a few internally licensed products, announced with huge fan fare, which never get used beyond the demo to a VP.