Chinese Comments?

Dear Chinese Person who always leaves comments on this blog,
Ni hi hao ma?  We are not sure how to say this delicately, but who are you and why are you leaving Chinese comments on our blog???  Don't get me wrong.  We love China.  In fact we both have lived there before.  Perhaps you are someone haunting us from one of our pasts?  But really, why do you insist on commenting IN CHINESE?!?  We don't know how to delete you without making this blog private.  So we are asking you to openly disclose yourself to the public right here on this blog.
Xia Xia,
Roligs
P.S.  Anybody else know how to delete those comments?