Hi everyone, the thread is so long that I can't read them all but I have 3 things to say:
1. Performance. Comparing the performance of C2 with native app doesn't make too much sense, but comparing C2 with Cocos2D, pixi, and home made HTML 5 game, this makes sense. These 3 tools are supported in IntelXDK, so you can try their performance if you have time.
2. App/game market. Even if C2 engine acts super lightening fast, and you spend all your daytime on your game, your game still just has only 10% possibility to earn money. But, if you can greatly shrink your development period, you are closer to success and that's the very unique value of C2.
3. Support. Scirra sells product directly to global customers, of course gloal dummy questions fly back to Scirra. If you let similar questions to block your man power then you have no time to solve real bug and improve product. You need some core member to filter the question. Separate questions by region/native language is feasible.
I'm located at East Asia, Taiwan. I can say more than 80% Chinese C2 problems are solved by me and my teamates. Game app dev/market here is going to have huge changes because it's ultra bloody but the amount of developer is still rising to burst out. If you are interesting in the situation in East Asia, you are welcome to have a chat with me.