Why do people keep complaining that there is no Installer, and why is there a new installer being made?

We don't need it

What makes you people want it?
Cydia is a lot better, it only displays apps that are compatible with your firmware.. and just because you can't add sources, doesn't mean you're being deprived of your apps, none of the old apps will work, and when they will they will be added to Cydia