I'm glad to see any game company succeed, especially when it's not one of the juggernauts like EA or Activision. However, the success of Candy Crush is going to ensure that the future of gaming is nickeling and diming players to death with IAP. Look at the top 20 top grossing games on the Google Play market - other than Minecraft, pretty much everything on there is listed as 'free'.
At this point, I don't even play mobile games anymore - I don't find the idea of playing a game and constantly second guessing it, waiting for the inevitable demand to open my wallet (yet again) to be fun, nor do I get any enjoyment out of the 'I'm gonna play the whole game without spending a single cent, 'fun' be damned' metagame where you're forced to replay the same levels over and over again for days, switching between multiple games with daily cooldowns, just to get some semblance of 'fun' out of the whole thing.