Allow Members to post comments pre/post events
Members can not post feedback about the event at any given point in time. Prior to the event members can see the event description, attendance list, event details (date time etc), but they are not allowed to provide any comments
Have club members post comments about upcoming and past events? I would like them to be able to post comments even prior registering for the event. For a sample implementation of this feature - see groupspaces.com
Motivation for the Enhancement::
Our club is a very social organization and members often like to submit general comments for the events that we host at the club. This creates a centralized place for members to exchange ideas (outside of email threads etc) for the events that we host at the club.
Try using a commenting system plugin - I'm in the process of experimenting with Disqus to achieve a similar outcome to what you have described.
While this may not suit all your requirements as laid out (especially as you would probably have to add this to each of your events), it is an option if you're in a hurry to have this feature on your site