I may be the only person in the world who doesn't see the value of Twitter for authors and publishers. It's not as though I haven't tried to understand. I've read or listened to industry experts who say that Twitter builds an author's platform or adds credibility. I get that part.
What I don't understand is cost/value trade-off. To make a mark, an author or publisher has to tweet or re-tweet multiple times per day. Sure, tweets are only 140 characters, but it's the frequency that concerns me. I'm not sure I have that much to say to warrant multiple tweets a day.
What's more, to make Twitter work, it requires you have many people following you and that you reciprocate by following many other people. Who has the time to follow all those tweets? Let alone the time to respond or re-tweet all those tweets.
How does all the Twitter effort pay off for an author or publisher? How does one monetize the effort? It seems to be a lot of work for very little payoff.