Keeping with a New Years resolution, most entries here on MovableBlog will have comments enabled. As time approaches infinity, so does this weblog approach the features of kottke.org, so Asides with either commentary or that link to something without comments enabled will also have comments (as does the inaugral "Aside"-with-comments about 43 Things). If it's merely a summary of something that has comments enabled, then no comments. All feature entries will have comments enabled for 2 weeks. Comment moderation is in effect, so if your comment does not initially appear, it probably needs to be approved by yours truly.
To put a twist on the kottke.org original, each individual "Aside" will have an RSS feed for comments, signified with a linked graphic as well as a
link RSS autodiscovery element in the page's header of individual "Asides" with comments enabled.