incrediBILL - 8:11 am on Dec 2, 2011 (gmt 0)
I continue to treat Y! with respect just as I do Google and Bing.
Personally, I find it hard to treat them with respect when they use SLURP as the user agent and don't use the proper full-trip DNS validation conventions, they're just making a mess out of agreed upon conventions, which I don't respect.
Likewise, having a hard time respecting Bing with all the junk coming from their crawler IPs.
Maybe I just expect too much from these so-called market leaders.