Considering the way the search worked before (which is to say ... not very well -- putting it mildly), the fact that it will find the authors' names at
all is a big deal. That it also finds other 'similar' names doesn't really bother me much since it puts the full matches first. I will admit to a brief flare of annoyance when I find I've wandered into listings for authors that have the same first or last name.