.. and i for on never vote with regard to extent ... b.c.
That's probably it, more and more users neither like to compete nor to play and then some are just interested and test their forecasting skills for themselves.
I for my part vote for a mix of interest and likeing to play and dispise the third option that is a root for many evil things that happen on spaceship earth.
Reading through eventual disputes from time to time the option out from any poll is always lurking in the back of my head and i assume this is the case with many more users that are interested in their causes more than in their ranking among guessers