Originally posted by magic.pill P.S. Here is a picture I took at my party directing the flash at the wall. Look how it completly destroyed the low-light party look.
Looks completly like a day pic.
As others said, it's a matter of balancing flash and ambient lighting... If you were in low light and just shot the flash on full auto, the flash was your main lighting and flood everything with light to get the right exposure... It can't read your mind to know that you wanted to keep the low ambient light visible... Which can be done by using flash compensation and EV compensation, if needed. There's no "wrong", "right" or "one-fit-all" setting, it all depends on the result you're looking for and the lighting conditions under which you take the picture. Sometime, you want the flash/flashes to overpower everything and other times you just want it to act as a subtle fill-in light...
If you're interested in using flash, you should read Strobist: Lighting 101 webpage. It lclearly and quickly explains the basics of flash photography and what we mean by "balancing your flash and ambient exposure". Getting great results with a flash is an art by itself... However, it's relatively easy to get very nice results once you know the basics and undertstands what you're doing.