@Dzahn wrote this a few days ago.
<mutante> there is a "when added to LDAP wmf you automatically also get Phab WMF-NDA" nowadays <mutante> but maybe not the same for "nda", not the automatic part <mutante> feel free to reopen that ticket to ask for phab nda
Basically this is the volunteer counterpart of T290605: When WMF staff requests to be added to ldap/wmf, also add their Phabricator account to #WMF-NDA.