We now have a new looking discussion forum available for all our customers. Some of improvements we have included apart from the color schemes and other intagibles:
1. Show last 3 comments by default for every topic. See more with less clicks!
2. Open the entire discussion in a separate window to go through all the comments in details. Very useful for long running threads
3. Improved experience due to pagination of topics. Helpful in case of very large and active communities where there can many discussion threads running in parallel.