Hi Folks,
I'm a 2014 Alum who is here to help answer questions.
For waitlist:
Be patient. The only reason to contact the admissions folks is if something changed in your application that could benefit you (i.e. you recently passed an exam for a certification (CPA, CA, CFA, etc.), promotion, etc.
There are FB groups for the admitted class, they are managed by the students. The google group is to facilitate communication and provide the admission committee with a means of opening and closing this communication medium.
Don't hold back on anything application related. If you apply, an official score report needs to be sent.
Happy to answer any additional questions.
Thanks,
mohater