What is the delay in seeking reassignment to a judge and magistrate judge?

On October 18, 2012, plaintiff filed a "Motion and Request for Adherence to Local Rules," arguing that this case should be assigned to the judge and magistrate judge who dismissed his prior action, Williams v. Walker et al., 2:07-cv-0752, in April 2009. Plaintiff does not explain why he waited until October 2012, more than three and a half years, to seek reassignment. In support of his motion, plaintiff cites to the court's Local Rule 123(d), which reads:

Local Rule 110, cited within Local Rule 123, is entitled "Sanctions for Noncompliance with Rules," and reads:

Page 3