A debt collector discontinue his law suit against me?

A debt collector commenced a law suit against me in June 2013. His follow up to the process has been irregular, sometimes responding to inquiries promptly but other times lacks response to curt proceedings for 6 months or longer.
Last activity on this case was my reply to notice of service for request for admissions filed September 2014.
Now the court has sent me a letter stating they will close the case because lack of due diligence to follow up.
Is this good for me or is there something I should do?