If so, why not taking StackOverflowStack Overflow, SuperUserSuper User and ServerFaultServer Fault to respectively programming.se, helpdesk.se and admins.se, respectively? Seriously
Seriously, I think the private domain will be a great additional benchmark for the popularity of the site. If it won't survive with offering Google good content, it should die instead byof being artificially kept alive by the power of SEStack Exchange. You have made a great job with cleaning Area 51, go on!