Welcome to WebmasterWorld Guest from 220.127.116.11
Forum Moderators: mack
I believe they're scrapers harvesting for as many permutations as there are for phrases that include the word, to mix and match and ... well, you know the rest.
There must be some way that can be detected by MSN.
Plus, there are a ton of pages returned for the query when clicking on the link back to the queries (in the last 300 visitors in Cpanel). They're real searches with a lot of real results. So I don't know if it's related, the symptoms don't seem to be the same.