I find @Keychat ‘s stamp system to be so refreshing. 1. It’s an honest and sustainable business model. 2. If each stamp can be a tenth of a cent, it’s much cheaper than the SMS days of 2007, for example. 3. Assigning value to sending of messages also incentivizes upgrades to more rich communication like phone, video, or 😲 face-to-face. View quoted note →