It feels like Twitter the company should be imploding, but it must be a secure business if its the next president's primary communication channel.
But the president of the United States speaks with the executive authority for an entire nation. It's questionable enough when a company's stock falls because Trump lashes out at them, and means it [0]. But what about the times he makes a typo, or just doesn't have all the info he needs at that moment when his emotions arise? Even asking that he types something to be sent through a Wordpress-powered system would give him the same megaphone, but adding a little more friction so that things that deserved to be trashed/called-out in his voice actually deserve so.
For those who say this amounts to making Trump less "real" of a man...sure. But he's no longer just a man, he's the chief executive of the world's greatest power. He gave up the privilege of "just sayin what I think" for the privilege of being able to unilaterally launch a nuclear war. Keep in mind that there are no checks and balances against this power -- it is utterly unilateral: http://blog.nuclearsecrecy.com/2016/11/18/the-president-and-...
Giving up frictionless communication in 140-character-sized comments seems like a reasonable thing to pass on, given the many extra responsibilities he has, and the extra weight each of his words have.
[0] http://www.nbcnews.com/politics/politics-news/trump-threaten...