My reasons: "There's a method to my madness. You see, gifs are trivially infinitely extensible and backward compatible. Whereas each new emoji requires an addition to Unicode and software updates. And the demand for more emoji is insatiable. That system is not practical or scalable." (I mentioned gifs there because I was known to frequently post gifs.) https://twitter.com/lapcatsoftware/status/105276966084695244...