From what's been said it feels like Boardhost are essentially withdrawing the customer service side of the support for owners using this message board style in the hopes they'll slowly either a) decide to pack it in with Boardhost or b) move to the forum format Boardhost offer.
Who knows if/when they will actually stop offering the IT/Server/tech support for message boards and push people into leaving Boardhost or using their forum format.
But if/when that does happen it makes sense to look at what other forum options there are that we could use.