When was the last time you used your own product? Probably the 2nd most embarrassing question to answer, right after “When was the last time you talked to your users?”. By now, we have established that I work in a central capacity building a Messaging product that is integrated into 17 marketplaces around the world and that this comes with a whole world of drama, complexity, and fun (of course). A while back, I was having a conversation with a colleague about how the performance of our product according to our success metrics, vary so greatly across the different marketplaces.…