On T346046: [Search Update Pipeline] Source streams for private wikis, there is a proposal to have separate streams for private wikis.

From Dumps 2.0 point of view, we need to decide whether there is a need to dumps these private wikis.

Some points:

• A private wiki doesn't have the 'right to fork' impetus.
• If T346046 is done, then this means we will have to consume two new streams tentatively named page_change_private and visibility_change_private.
• Currently we rely on the "open" dblist, which include all currently open wikis: https://noc.wikimedia.org/conf/dblists/open.dblist. Perhaps we need to filter the list against https://noc.wikimedia.org/conf/dblists/private.dblist ?

A quick discussion with @Ottoandry, @Milimetric suggest we do not want to dump these wikis, but we should discuss more broadly.