Thanks, JShare -
You get anywhere with this?
It's not only after commenting, but any request for a URL "up the line" from the directly cached page is 403.
Last week, I'd directly-cached the following as the post was on its way to the Number 1 spot on Digg:
direct-cache worked nicely, but no one could get to Jeff's home page anymore:
so we had no "upsell" opportunities to promote the rest of Jeff's stuff.
We cannot be the only ones who'd like to have our cake (direct-cache) and eat it, too (still allow upstream resources to be available).
I'll keep looking through these fora.