I just read this thread (the entire thread) and i might some idea that havn't been suggested.
First, when clicking on the audio portal button, you see the list of new submissions, and the best tracks ever list, right? Wouldn't that be nice if we could see the artist's name with the songs? Most of the time, when looking the new submissions list, i may miss a new song from an artist i like.
Second, it's about the genres. Either add new genres, or add subgenres for subgenres. But whatever is done, it may be negative for the AP.
Let me explain. Let's suppose the electronics genre has more subgenres. Imagine two close genre (let's say, for the example, Techno has two subgenres, Hardcore and Softcore). A guy who likes techno is gonna, of course, browse trough techno genre. He prefers Hardcore so he's browsing the Hardcore subgenre. But he may as well miss some great tracks in the Softcore subgenre, because he doesn't even browse that subgenre, as he doesn't like Softcore.
I don't know if i am clear, though. But that leads me to a question : won't adding new genres and subgenres kill other genres?