Today while doing some keyword research in Google I came across a Bing search listing ranking at #11 for a competitive term, which is odd due to the fact that Bing blocks spiders to those pages !!
but when I did a site:bing.com/search
so why is google indexing these pages and should bing just drop the robots.txt file and give google what it wants ?, of course these pages are not truly indexed as a few people on twitter has pointed out to me, but 11,000 + pages from links pointing at those pages that Google is allowed to spider ??