lucy24 - 9:35 pm on Dec 5, 2013 (gmt 0)
I took over this site in 2008.
I doubt it pertains to something that existed in the pre-2008 version of your site. My domain was registered in early 2007 and afaik the name simply didn't exist before then. It's a pattern that you see fairly often with inept robots: they've got one script that lists filepaths and another one listing domain names, and they get the two garbled. Sometimes you can even work out what site they think they're crawling! But coming from a major search engine it's unusual.
199.30. is also the range used by the plainclothes bingbot that requests images. (The non-image variant uses two other ranges even when the UA is identical.) In fact they may be connected. I have yet to figure out what Bing Preview really is. If it's hiding in search results it's hiding awfully thoroughly-- which would seem to defeat the purpose of a preview!