Note that the thread will appear closed for anyone but the OP and staff if it was escalated into a support ticket. Further assistance is then handled privately between staff and the user in question.
Also i know that Corey, the big man, did close all support threads a while back since most of the issues after migrations would then be sorted.
He made an announcement with information about that when he did so.
Admittedly, during this whole turbulence of migration and all there is probably some users that were overlooked. We did move the entire operation, including all backend system which did cause a bit of chaos for us in staff as well. This is not an excuse for not providing support though, but an explanation as to why some might have been overlooked.
I am sorry if all this did cause an inconvenience for anyone.