Is posting a public message on Twitter akin to speaking from an old-fashioned soapbox, or can it also be regarded as a means of direct personal communication, l

Is posting a public message on Twitter akin to speaking from an old-fashioned soapbox, or can it also be regarded as a means of direct personal communication, like a letter or phone call? That is an interesting legal question. How much more direct is a call sent to someone's cell phone, or a letter to their mailbox, than a tweet sent to their Twitter home page? A letter shows up tangibly in your mailbox no matter what you do, and the same with a phone call. You can choose to ignore those, but they will show up and can still disturb you. A Tweet is a little more intangible, it's quiet until one to chooses to look at it. I wouldn't say it's as direct as the other two. But I guess it's the thought that counts.