I miss when naval slacks looked cool. When Jagex tried to fix them(after HD I think) they just made them look even worse. I also miss the aggressive random events, I enjoyed fighting them.
I dislike when girls have drawn-on eyebrows. They tend to look a bit ^ too ^ ridiculous. Piercings - especially oversized earrings and gauging; never understood the appeal but I guess it's a matter of taste. And general stuff that's been said, obesity, orange tan, etc.