How can I quote all text in a GMail reply, not just selected text?
Just to provide some background: Right now, it doesn't seem like you can turn this feature off.
There used to be a labs feature to turn "quote selected text" on. Very recently (mid-November '12) they turned it on by default, without providing a way to disable. I haven't been able to find any official mention of it, only comments from others who have noticed the change and miss the old way.