I wonder if an RT queue might be a good tool for keeping track of requests and suggestions. It works well in other contexts and requests could be linked back to nodes on PM for discussions.

A few items from my wish list:

• I too wish there was a preview on the update page.
• I wish there was a preview on the scratchpad edit page.
• I wish there was an easy way to find responses to my own posts. An optional filter on Newest Nodes so that it only showed nodes in threads I had posted to would be very nice. A count of responses on the list on Perl Monks User Search would also be helpful.

update: actually, there is a preview on the scratchpad edit pages - I just didn't see it because I never thought to look down for it instead of up top where it is on the comment edit page, and it was always just off the bottom of my screen.