I propose a module that provides an RSS feed of nodes and comments authored by any given user. The feed is available when viewing a user's profile:
The feed orders nodes and comments correctly and respects the admin/content/rss-publishing settings.
I think the module should provide an admin interface for selecting what content types to publish via RSS. It would then produce a feed of nodes of those types plus comments on nodes of those types.
In my research, I have not found a module that provides this kind of feed, and I don't think I can construct a view for it.
Does this sound useful?