I mentioned that Silt now supports the toggling of comments on a per item basis by a site author (or authors). For instance, I opened this one back up, even though the post fell out of the main site feed. When an item is left open like that, a feed is generated. How do you find that feed? Well, if you browse an item like that, you'll find an XML link added to the item footer - you can subscribe using that. If your aggregator supports the embedded comments module, you'll see the post and all its comments. Even if it doesn't, you'll at least be notified that there are new comments.