a few years ago, i had to maintain an openx installation and found quite a few critical bugs, for which i submitted patches to their then-active jira bugtracking. as far as i know, the bugs are still in the "current" 2.8.10 release.
the opensource version was unofficially abandoned when the Enterprise editions where announced - without really telling the users that they would not maintain it anymore.
i'm not at all surprised about the new problems and their lack of communication.
At the end of the week I decided that the client wasn't allowed to run OpenX anymore and we found a different solution that worked within their CMS. Less bells and whistles, less problems.
Their products are a bit shotty and so is their website. I can go on and point out even more problems with their websites... but that would be consulting.
I applied there and got shot down, it seems like they only hired people from prestige university (caltech, stanford, etc..). This view is also backed by a few reviews on indeed. They're very smart and create some very very unique stuff (rolled their own db on top of riak, live auctions, erlang), unfortunately all those awesome algorithms doesn't help their shotty products.