Some say: Use events, events are great, all will be great and rosy. Then reality bites, and.. let's talk about strangers you'd rather avoid - mistakes to make when building using events. Things change, evolve, are not and overdelivered, old events start taking a lot of space, and someone is already using the name you wanted?! Expect: problems, symptoms, consequences, and some 'get-out-of' cards. Come for the experience others gained first-hand, so you know what to avoid.