I have found a video which explains how people are faking their earnings on tsu. Please be aware of this, because not everything you see is true. Some people just want to make hoax or be a 'Rock Star' for a few minutes. If you want to know the truth about someones earnings, he should show you either check or a screencast video of their tsu account.
Screencast or a video is very hard to fake.
If you want to find real people who earn real money, see this forum.