We've found out that its very important to Google to place descriptive keywords in the titles of posts - it makes a huge difference. So putting XMRV in the title of a post is good. If its on the CDC putting the CDC in there, etc. We had a huge thread going with the last imperial college study that got on play on Google until we changed the title - then it sprang right up there.
Cort, does it work for post titles, or only for thread titles? If it works for post titles, then should we be using "Go Advanced" for all our posts? (I have some wicked suggestions for what to put in the titles, but trust you to come up with the same ideas behind the scenes.)