Over a year ago I questioned the use of tagging on WordPress.com to spread link equity around as "a rising tide".
If you use similar tags to a high profile blogger, it can help with faster indexing and rankings, at least from what I have observed.
In many ways the effect is similar to linkfarms, using the tagging as a central hub. Many commentators complain when they see Technorati tag pages appearing in the Google SERPs, because Technorati doesn't have a huge amount of editorial control over the content of those pages, they are more like search results.
In that situation however
WordPress.com Bugged XML Sitemaps
- Homepage daily priority
- Every other page updated on a weekly basis?
That seems like a good way to tell the spiders to index your site less often than they currently do. With Lorelle you would certainly want spiders checking the home page hourly as she is sometimes the source of breaking news.