> That isn't clear to me at all. The publisher is essentially the author from a liability perspective.
In a newspaper that selectively chooses to print some letters from readers, would the author be the publisher or the newspaper? That's an example of extreme moderation ("out of the 1000 letters we received this week, we will print this one") while Twitter is likely closer to the other extreme ("out of these 1000 Tweets, we'll hide/delete this one").
In a newspaper that selectively chooses to print some letters from readers, would the author be the publisher or the newspaper? That's an example of extreme moderation ("out of the 1000 letters we received this week, we will print this one") while Twitter is likely closer to the other extreme ("out of these 1000 Tweets, we'll hide/delete this one").