I was a tsu member for years. They had an awesome idea but it was broken by spammy economics. If we implimented a multi-level marketing system here where it pays more to be at the top of a tree than to actually produce the content then I think we'd be dragged through the mud. That was tsu's failing.
I dropped it like a hot rock when they set up their group system, promised us all a fair share, but when my turn eventually came I was last. It was heartbreaking because it should have all been rolled out at once. Equal share and all.