If the feature is significantly different (windows snapping into positions on the screen versus remaining within certain constraints), then the feature might as well not exist. That they're named the same is irrelevant.
By that logic, one could argue Windows doesn’t have window snapping (it has, but it’s significantly different from what some people are used to on the Mac, so it “might as well not exist”)
(Not making any claims about the usefulness of either feature)
The original context of this conversation was window snapping on Windows not being available on the mac. Given that context, I stand by my earlier statement.
Thanks falcolas, yeah, I definitely meant "window snapping" in the way that almost every other desktop environment, including LXDE and Windows, means it. Keyboard shortcuts to resize and reposition windows without changing display mode. Windows has the drag to edge which I like too (although I don't use Windows much anymore).
The fact that OSX would have a feature called "window snapping" that isn't really the same is similarly mind boggling.
(Not making any claims about the usefulness of either feature)