You have to go directly to the specific vocaloid singer just to post a song. I think because of this, we end up with many weak threads and not a very strong music sharing community. This is especially true when it comes to lesser known vocaloids like Flower. No one is at fault and it's not the end of the world either way, but I think if we had a channel where people could have more broad, general discussions on vocaloid music as a whole, that would encourage more posters to share.