Brodie Clark from optimising.com.au has been tracking the local Q&A feature in depth and noticed the other day that many of his answers have gone missing. He was upset because he spent a lot of time and energy answering questions for Google and those businesses and now they were gone.
Well, it turns out it was a bug and Danny Sullivan of Google (still feels weird to write that) confirmed there is a bug and the answers should return soon.
I suspect the bug came from the need for Google to be better at moderating the Q&A feature? In fact, they removed it from some local venues because of the insane spam.
In this case above, Google will likely be adding your Q&As back after they sort out the bug.
Forum discussion at Twitter.