Ditto. While I'm never going to use this Yo here thing, I don't consider it to be something that never should have existed. Yo and the mere fact that it exists

Ditto. While I'm never going to use this Yo here thing, I don't consider it to be something that never should have existed. Yo and the mere fact that it exists means that the per-unit cost, monetary or in terms of effort, of making something more useful has fallen, once again. The barrier of entry for something more innovative than Yo has dropped and people, at large, have become just that tiny bit more receptive to something even more interesting than Yo. Ten years ago, just the concept of Yo actually working and having a user base in the millions would have been the biggest thing since sliced bread. If aspects of the present might be a little over the this-is-amazing hill, then that's not too much of a doomsday portent for the future as it's being made out to be.