There is a lot of value in some of the posts and topics in OT which may have been a reason it wasn't closed down sooner. It was also a great place to ease into the community. BioWare knows the forums can benefit from an OT section but things have come to a point where closing OT has become the lesser evil, somehow.
As for developer communication with the community, where and when seems, for the most part, to be decided by each individual employee.
Pertaining to any remaining value on the forums, there must be something to be gleaned, preferentially for BioWare, above all other content that has been abolished. These changes were done with intent, some forethought and ruthlessly.
What use is a BioWare forum if the devs don't use it and news pertaining to BioWare products/events aren't posted there?
What use is a BioWare forum if there isn't a community management team engaging the gamers, gathering feedback and keeping the community informed?
Without that, this forum is as important as any other fanforum. So why use it if the climate is better elsewhere? What do we gain from posting here? What does BioWare get out from having this forum?
Individual BioWare employees can post on other sites and have done so.
I like how you're still giving BioWare the benefit of a doubt but let's be fair: It could have been handled a lot better. The problem is, if they had announced it days early, the forum would have gone up in flames. That is because BioWare isn't as trusted as it used to be. So... as a CM, I would have done exactly the same as Conal. This thread is much less of a problem than a dozen new flame threads in the OT forums every day.
What baffles me is the decision to remove the OT forum in the first place. That's the part that makes no sense to me. As CM and/or mod I'd insist on having an OT section in my forum, simply because it keeps a forum healthy and orderly. It functions as a valve for the community, because there they can continue the offtopic discussions that cropped up in ontopic threads. You can't forbid an entire community from doing something, you can only redirect them.
In this case, I guess it's redirected offsite. That significantly lowers the appeal of the BW forums and I don't think it's a good longterm strategy.