I've only learned who the publishers are on my fav authors to avoid buying from them until the prices go down.
When I have a coupon for kobo I go down the list seeing who the publisher is and pass them on by. I don't even look at the book unless it's not from the big 6. It's rare a new book is under $10 from them.
Before the big 6 fiasco I never noticed who the publishers were.
I guess one good thing has come from all this I have finally started reading some books I've had on my reader for a few years and I've really enjoyed them.