I have to disagree a bit on the OP's original post. When the first round hit some of us started making suggestion and some of them were definitely implemented. True they may have been small, but they were implemented. Three things that come to mind immediately are
The site used to log you out frequently. Then they extent the logout by hours. True it wasn't as nice as always logged in on the old RV.Net but it was an improvement.
While I also don't understand the need for groups we now have them and in the beginning they were a convoluted mess. After suggestions they were reordered into better grouping.
The addition of the previous and next buttons at the top of the Unread Posts page was a suggestion so you didn't have to scroll to the bottom off every page like what you get with Amazon.
Heck, come to think of it the unread posts page even existing at all was a suggestion.
