https://en.m.wikipedia.org/wiki/German_tank_problem https://en.m.wikipedia.org/wiki/German_tank_problem Preventing competitors from estimating the size of your

https://en.m.wikipedia.org/wiki/German_tank_problem https://en.m.wikipedia.org/wiki/German_tank_problem Preventing competitors from estimating the size of your business (or of your customer's businesses, if generating sequential IDs on their behalf) is one big reason for having unguessable public IDs.