1. Register (with email) for practices - THAT INFORMATION WAS NOT PROVIDED BEFOREHAND
2. Python only - THAT INFORMATION WAS NOT PROVIDED BEFOREHAND
3. Skype required - THAT INFORMATION WAS NOT PROVIDED BEFOREHAND
-1
fail and don't send me any spam on my email addy.
About page: "Add Skype user quixeychallenge as a contact. A working microphone and speakers/headphones are required. [..] We'll Skype call you when it's your turn."
And since the registration form is required before you do anything, and it is one form needing an email address, I think that counts as 'telling you about the need for an email address before you get involved' too.
-1 fail and don't send me any spam on my email addy.