Mike — It doesn't make sense to me either. I tried a couple of your examples. Didn't have much luck.
I do find this to be curious. When I did a search for 'Tomato Chat Thread', unlike your result, I didn't find it to be number 5 on the list. In fact it was so far down that I almost quit looking. Since I didn't know whether to use quotation marks, I tried the search with and without them. Same result.
When I tried searching for 'Bookmarking', I ended up finding a question I asked about a year ago that was not related to bookmarking and also had never been answered. In fact I'd been looking for that question just the other day.
