Yes, it looks flattering on most people.
Yes, it gives the relatively flat-chested a bit more cleavage.
Yes, it really hides the ol'double chin.
Posting 70 or so pictures using the same damn camera angle really doesn't make you look any better.
Generally, it makes me wonder what is being hidden.
Once in a while I just want to see a woman at that angle and then try to throw an M&M down her shirt. There's probably something wrong with that idea, though.