Oh! I know the answer to that one!
The only thing less useful? An online political statement that doesn't actually accomplish anything!
And my opinion has nothing to do with the White House. In fact, it stems from my only time petitioning my congressional representative. I begged him for no form letters and no additions to any email lists -- and a I got a form letter and put on an email list.
Now I get emails every month or two telling me what an awesome guy he is.