The closure of all mailing list running on openoffice.org discussed on ooo-dev@i.a.o list.
One side effect will be default assignee in Bugzilla, who is responsible for the bug will be abandoned. Every Product has own default assignee, such as for this bug is: issues@openoffice.org. Other examples writerneedsconfirm@openoffice.org, dbaneedconfirme@openoffice.org.

In past they used as a waiting list, until the developers appointed, not spam all developers mailing lists, possibly used inside sun/oracle.
Usually when QA reviewed bug, assigned developer, or if the bug not confirmed the default mail used as sink.   

I have no knowledge where these mails posted now. 
They needs to substituted until the closure happens.

Possible solution use ooo-issues mailing list instead cc-ing.

Another problem could be the already assigned bugs, where @openoffice.org email addresses used.