Can you provide an example of the type of question that comes back with a reasonable prediction? So far, I've tried 3 times, and the answer each time was something along the lines of [prediction will be true] if [they do the thing that makes the prediction true] which is not useful.
Interesting. I asked similar questions (Who will win the Presidential Election and Will XXX college football team win the national championship, etc) and none of the responses included percentages or yes/no indicators like the examples you link to.