Fundamentally, people hate change. In our daily lives, we carry out many tasks that are repetitive using "muscle memory". The brain has stored the old forum pattern and automatically guides us through the actions to read and respond within a certain structured area. When the new format came out, the brain can no longer help us navigate "automatically"(muscle memory) and sees this as a whole new learning experience.(we hate change) What we used to see was changes in the same old common pattern, so the brain doesn't work hard to see every pixel, just those that are different. The brain is working harder now because every detail is new and requires repetitive use to develop the new "muscle memory". Soon, the old format will be erased as we navigate through the new one. People new to CR, only seeing this format, won't have the same issues.
***note: My main issue with the format is the red type. Yes, the CR logo is red, but making everything red to go with the "theme" doesn't work for me. The color red is wrong psychologically anyway. Blue(the peaceful color) would work better for me.
I may be viewing CR less because I hate red text.(hint, hint)
And why do I have EOS 77D? Have I been bad?