Ive been playing quizup for over a year and have seen the recent monetization attempts taken too far with ads and boosts. The actual quiz format is engaging and fast-moving. There are many categories and players. Quizup is dialing back a bit with adblock for $3 (forever, not 1000 days- it is a programming artifact), but still sell boosts that distort rankings and reward poseurs. However, you can still enjoy beating those whove bought fake rank, and the social feed forums are okay if you like that sort of thing. Its worth playing, so give it a try.