i remember patchou saying that he also has no reliable way of getting the persons email from their name, for the very same reason we cant loads of people could have the same name, and that he wont implement it because its unreliable. (edit: wow im slow (but still right
), see norooms post above)
although if loads of people are going to make scripts which rely on retrieving email from name, then it would be more reliable if patchou were to implement it. this would at least provide a standard way of checking instead of every scripter using a different method.