correct ... I initially thought I made some error when I didn't get BountyAmount values but on other sites the results were OK so I decided to dig into it.
BTW since it seems to be specific to MO - there is also mathoverflow tag on Meta Stack Exchange. (I'm not sure whether or not it should be added to this question.)
Out of curiosity - in the rooms associated with Meta Stack Exchange, is there some difference between tagmathoverflow and meta-tagmathoverflow?
I want to identify answer that are just one vote away from the Pizza Hat (was Extra Toppings last year). Searching for "pizza" or "toppings" on data.stackexchange.com did not reveal a suitable query.
How to query for that trigger?