For one thing, if a submitter really wants to know what is going on, he or
she needs to be on the list in some form so at least he or she can ask
about the book and get info unofficially about it the way we all talk about
books. If you do not want to read the list, get digest format and delete
it. I am being realistic here. If you want info at this point, you have
to go where there is a possibility of getting it even if
unofficially. Beyond that, if you do not want to join the list and do not
want to put your email on your submissions I have no idea how you find out
about things. I just know that some books of poor quality get flamed. I
personally validate rather than submit but if I did submit I would only put
my email on books with good stats.
I admit to wanting to occasionally harshly criticize a submitter.