How can I limit the number of tweets someone sends me?
You can't do this. You can only block someone from sending you tweets altogether.
If I open a twitter account will it remain private or will it appear every time someone enters my name?
Because he receives so many messages, Mr. Obama has a staff who read them, including hand-written or typed letters as well as electronic messages like e-mails and tweets. In some cases, the members of the communication staff will select some letters and e-mails and give them directly to the president, who will respond personally. But usually, the staff members (who were specially selected by the president for this job) are the ones who will respond…