It’s a sad day to see InVision shut down. Most startups die for the obvious reasons, but I think there’s something to be learned from InVision’s demise. Positive - InVision showed me the power of the Invite-to-collaborate & charge to organize growth loop, which inspired a lot of my thinking at Notarize. When InVision was on the rise, I think it was entirely a result of this growth loop paired with their pricing model. It was bottoms up. A designer would register for free and share a fil...