So, I finally got IntenseDebate commenting working again on my in.sight Tumblr. Woo! After the theme change, ID was broken. But now that it's working again, I figured out the Posterous posting dilemma.I will be posting to Posterous, which will post to Tumblr - but not link back for comments. IntenseDebate comments will appear on the Tumblr post so I can just keep the discussion there. I can also keep meta-tags and keywords (yay!). Posterous embeds a whole ton of media formats in a really nifty way - a little cleaner than the way that Tumblr handles embeds. So it shows up all neat on Tumblr. Good combo.
Posterous is such a nifty little tool. Thanks awesome Posterous people! Makes it much easier to repost to Flickr too.