Until Slack releases its enterprise offering, there'll be some companies needing the control that FB@work will give them. I've been using FB@work for a few weeks now, and it seems to be a great competitor to Yammer, but not to Slack.
The article doesn't say they are being hosted from DRNK, it says they've been invited to. The/. title is a poor summation, but the fact that they're not currently hosted there does not disagree with the content of the linked blog post.
You forget (or are intentionally not mentioning to seemingly strengthen your point) that the Bush tax cuts have at the same time reduced revenue, thus adding to the situation. We need to both decrease spending and at the same time increase revenues; this is the only way out of the situation.
Last time I had to help a relative move a malware infestation I was asked what I charge for the service. My response was $150. But, I added, if you let me migrate you to a Mac, I'll waive the fee and migrate you for free...