As someone who belongs to many, many forums over the years, I've gone through a lot of forum software changes. Generally, the vocal majority raise heck about it, but eventually things settle down and people go about their regular forum use with little effort.
These new forums are so much "easier on the eyes" than the mind-numbing sea of text we currently have. Some like the new colors, some hate it. Some like avatars & signatures, and some don't. But the reason you come here is for the information, and this new software WILL make it easier to find what you're looking for.
Macworld.com switched to this very same software last year. They had an obscenely large user base, all of which voiced their opinions repeatedly, to the point where many simply stopped visiting until the switchover was complete. In general, those that don't like change tend to voice their opinions the loudest. The vast majority though, tend to keep quiet and roll with changes. Today, Macworld's forums are running just fine, offer a plethora of new features, and are more active than they ever were previously.
I have no heavy interest in what Adobe does with these forums because I rarely visit the current ones - mostly because I find them absolutely unreadable. But I'm also betting I'll be using them a whole lot more once this switchover is complete. In fact, I KNOW I will.
Rather than complaining about change in general, colors, icons, avatars, signatures, bloated code, or whatever silly reason some are coming up with, time would be better spent simply helping to find bugs with what is there. Once the bugs are worked out, Adobe will most likely start looking at "fine-tuning" the look & feel.