Sounds a useful idea. These could (should) be archived on the PM site, so we can refer back to them over time. Maybe have the "newsletter" as a node that cannot be commented on by mere mortals?
Comment on Re: The PM Weekly Newsletter (Idea in progress)
although.. is there anything so wrong with allowing comments? Similar to the way the Voting Booth allows comments. Maybe have it be like the front page though, where it just says how many comments, without listing them all automatically :)
If comments were permitted on the newsletter page, people may tend to comment on the individual nodes listed and not the overall newsletter. This will disjoin the comments made on the newsletter node from the original nodes they are referring to. Perhaps a summary of the node as described with a link back to the original node for details and further comment would be an ideal solution?