Julian Sanchez makes an interesting observation on yet another reason why full-time journalists hate bloggers:

[I]f you tend to write any kind of more abstract news-analysis type stuff, then unless you’re a serious expert on the topic at hand (and maybe even then), you’ve got about 12 hours after a story breaks before someone out there in the ‘sphere has already made every interesting argument you’d been thinking about putting down.

That’s about right.