Its "What does...", and "people's".
If you don't take the time to proof-read everything you type, why should others? Especially in a video game where the time of deleting a whole sentance to re-type it properly is just not worth it.
Grammer just isn't one of those things that matters, as long as you can understand the meaning of the sentance.
But if it really bothers you still, i demand you edit your post properly.