The biggest problem with RSS
It has been pleasing to see the weekend discussion on RSS. An author of an RSS aggregator has indicated that the "main value adds I get out of RSS are not the core RSS 2.0 specs but modules added by various third parties like xhtml:body, dc:date, wfw:comment and slash:comment." An author of a popular weblogging tool has indicated other things he would like added to RSS in support for weblogs.
IMHO, the biggest problem with RSS isn't that there are two ways to indicate who the author of an item is. The biggest problem I see is that there isn't a single place to find out about both alternatives.