Okay I will reword the question, thanks for pointing that out.

I don't know what names would be best. I wonder whether the word "Advanced" will put people off and sound elitist. Using the words "Easy" and "Hard" implies that the people in the "Hard" area are choosing to challenge themselves and are putting in more effort to do so. "Beginner" implies that after a while you're supposed to go to the other forum, when really, everyone learns at their own pace and some people may just prefer for it to be easy. Maybe you don't like the words because they're a little bit cute, as if it were a game? Maybe fancier words like "Challenging" or "Difficult" would appeal more?