BTW, I downloaded a fresh 2.0.2 and did some global searching for just the word "private" and I only found 2 references in the entire download package:
ditto.class.inc.php (Line 19):
//<?php
$this->constantFields["db"] = array("id","type","contentType","pagetitle","longtitle","description","alias","link_attributes","published","pub_date","unpub_date","parent","isfolder","introtext","content","richtext","template","menuindex","searchable","cacheable","createdby","createdon","editedby","editedon","deleted","deletedon","deletedby","publishedon","publishedby","menutitle","donthit","haskeywords","hasmetatags","privateweb","privatemgr","content_dispo","hidemenu");
ditto.class.inc.php (Line 824):
//<?php
$access= ($modx->isFrontend() ? "sc.privateweb=0" : "1='" . $_SESSION['mgrRole'] . "' OR sc.privatemgr=0") .
I still couldn’t find "hidePrivate" (even case insensitive) anywhere... am I missing something, or is this specific to SVN? (checking now...)
UPDATE!
Wow...definitely was specific to the SVN. This is what I was looking for! I’ll give it a whirl

(Thx, Mark)