On the subject of giving our addresses.
This is something i would worry about where michael stores the information. As an IT student i worry about some hacker finding it. So i wanted to ask if they are encrypted/ password protected so and hidden really well?
The address information is stored locally on my desktop PC at home only. I delete the PMs that I receive from you when you register and if you are concerned about hackers you can and should delete the PM from your sent folder as well.
The reason we request that you provide a postal address is indeed twofold:
1) as DJ said, to have these available in case we find some nice prizes and/or merchandise to send to the participants and
2) as a mechanism of ensuring that we minimize "fake registrations". As you expect us to trust you with your best intentions to build and submit a level and not share information about the package, we expect you to trust us/me that I will keep your personal information personal.
So in short - without sharing your real name and postal address, you cannot participate in BtB.