Probably not, but I think a lot of people meld a lot of those together in their work. I could have just as well called it Abstract Expressionism, or Contemporary Expressionism in order to make an umbrella forum. I think some people wouldn't know which forum to post in if I had two separate forums: Abstract and Contemporary.
I personally think a lot of people would post their somewhat representational art that is abstracted in the Abstract forum. Some of us that are purists would think,
"what is that doing here?" While the person posting can
feel like it's abstract. I just didn't want that to happen.
For that matter, people could start debating what is abstract and what is
decorative. I know I could.