Welcome to WebmasterWorld Guest from 126.96.36.199
The IPs hit with a bot-like UA including the word "crawler" on 188.8.131.52/24 - specifically between 184.108.40.206 - 220.127.116.11 but probably most of the /24. There were no proper rDNS entries for the bot IPs.
However, considering Bing is supplying results, does it really matter at the moment?
I continue to treat Y! with respect just as I do Google and Bing.