Thanks for the feedback. It is true that most people would prefer to not have interfaces change once they get used to it. Unfortunately, the old version of the forum software (with the old theme) was no longer being developed and improved.
This is a completely new framework written from the ground up and we paid for the custom theme development to be as similar as possible the old one. There were a ton of updates under-the-covers to ensure we are able to continue to scale, remain secure add new features.
Would like to see a "Newbies" forum. Some members just joined and it's the same old questions that turn into debates of FAA regulations, or spelling bees, and who is morally right or wrong. Newbies should search for posts or look through the forums first before asking the same old questions also. just sayi'n.