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Why did you wear a steemit shirt to post a story?
"I have posted lots of things and i could not get much money, so i better follow the top post girls by wearing a steemit shirt so i can grab upvotes and get the money"
Isn't it?

because I think it's more interesting will be combined with my story

There's no need for that level of cynicism. It's a way of verifying that shows a little bit of commitment to the platform and is a little bit more fun as well as harder to photoshop than holding a piece of paper up to the camera.