It is not the scam. Just a black humor to prove how bitcoin is secured by Mathematics.

The search text input is for searching Page Number ONLY.
We have cancelled the private search text input in case people think that we will record the private key people entered.
And we also write on the page very CLEAR that :

再次警示: 永远不要在任何地方暴露或者搜索自己的私钥！

This Chinese sentence means : You should NEVER expose or search your private key at any circumstance at any time.

Many people learned the philosophy of bitcoin after seeing this page, and they say, at first they are worried, but after seeing the page number, they can put their heart into their stomach and go to sleep peacefully. They say:  yeah my private key is just in these pages, just take it if you can find it.

Pretty interesting and amazing, isn't it?