Question CircleMUD legacy code

I am currently weighing the options between using tbaMUD and building a server from scratch. The mud I am envisioning has some structural differences with tbaMUD, but there are a lot of features in tbaMUD that I would like to incorporate in my mud. The license that is currently applied to the original diku/circle mud code is something that I would like to avoid if possible.

Now the question: I see that many files of tbaMUD were not part of the original CircleMud legacy code and it is explicitly described as such. Do I have permission to use portions of these files, with credits due to the creators of each file, or does the whole tbaMUD as a complete product fall under the diku/circle mud license?

If I have offended anyone by asking this, I apologize. I only want some clarity so I can make an informed decision.

Several years ago we were talking with Jeremy Elson (CircleMUD creator) about removing the license restrictions. He was all for it. But, the problem is so many people have contributed to the code there is no way to get permission to remove the licensing from everyone, including the original DIKU team.

So long story short. The original intent of the license was to prevent people from making money off University hardware. Things have changed, the original intent no longer applies and no one is going to enforce the licensing.

Everything I have contributed I consider public domain, as do the majority of contributors.
Do what you want with it. Just understand you do so at your own risk.

I feel as long as you post the appropriate credits within your MUD you will be fine. I honestly don't think anyone these days is going to take action against someone unless that person was violating the original intent of the license, which was making money from it. The chances anyone is going to make money from their mud, especially now, slim to none.

As with anything else - At your own risk (I drive my car to work "at my own risk")