:::B.S.  Wikipedia is not an oligarchy.  And I don't know how you define newbie, but I've been editing and involved in countless policy disputes for over five years.   What's with the anonymous IP, Mr. Experienced? 

 :::A brief explanation for the delete might have been reasonable and judged possibly sufficient for the first delete, but once the delete was challenged, explanations for the second, third, fourth and fifth deletes needed to provide full explanations, not just lame repeats of what (little) was said in the first delete.  Sure, each delete did not use the same words, but each amounted to nothing more than a reference to a section of a policy that did not even address the deletion of other users' comments, much less sanction it, WP:NOTAFORUM. 

 :::It was not until the fifth (fifth!) delete that a plausibly legitimate reason for deleting was finally provided (WP:BLP), and at that point it was accepted.  The deletion of other users' comments should not be taken so lightly.  The only sensible editing demonstrated by those deleting was in that fifth delete.