How to get someone's IP address from bit.ly or other URL Shorteners

Today i will share one more IP address catching trick.
I know that most of you already know that trick, but still i want to share with you all.
Please don't mind if it clashes with anyone. I haven't enough time to check the replicates ;)

So here it goes:-

1. First go to this website :- www.s33.net/rec/create

2. Now you will see this screen. Here enter your desired password and the link (preferably to a image). And click on Submit.

3. In next screen you will see your created link.

4. Now go to bit.ly and copy your ip catcher link here and click on Shorten.

5. Now in next screen you can see your Final bit.ly link.

6. So the link is ready. Now you can send this link to any person. The bit.ly will surely avoid suspicion.
And the change of bit.ly link to actual image link will be so instantaneous that the person will not be able to see the intermediate IP catcher link.

7. Now after that, if person has clicked on that link and you want to see his IP, then go to Link Login page www.s33.net/rec/view.php and enter your link id and password.

8. In next screen you will be presented with this screen. Here in that case the Second IP is bit.ly's IP and The First IP is the Person's IP(in that case it's mine ;) )

Note: You will see the bit.ly's IP only once. I hope you like it.
And this is for educational purposes only. I don't take any responsibility what you do with it.
Comments are welcomed.

Edit: The website www.s33.net seems down. You can search another ip catching website and hide it under bit.ly