When I tried to migrate the following question to CS.SE the question got closed as off-topic, got locked by community, but was not migrated. So is a relational database just a >1 dimensional ...
When going through several migrations the user owning the post may loose the ownership. E.g. if user X has profiles on sites A and C but not B, and one of his posts on A is migrated to B and then to ...
It seems that the votes also got transfered for this question when it got migrated to here from SO.