Heh we should make a list of 'common game design questions' which we can provide simple 'event-wise methods' of achieving stuff in the simplest way possible...enemy 'waves' and spawning positions in general is a good topic to add!
Absolutely. That'd make it a lot easier to learn the whole deal. The interesting thing about games is that, as an artform, everyone copies from one another anyway, trying to better what the other studio did wrong. So a lot of the stuff that people would come up with will be very similar and it doesn't make sense if 10.000 people all need to solve the same problem 10.000 times.
Video Tuts on this would be neat, so people could learn in an even quicker fashion. There are services like youtube and vimeo now, so why not making full use of em?