I must admit I don't really like the fact that you ask for a "proof". Do I come to your giveway to ask you to provide a screen of where you bought it ?

I guess that you did not mean to be rude and you just wanted to check that I'm aware that the Humble Bundle key is a Yoyo one and not a Steam one, so I will pass on that and answer.

It's the key that Yoyo will provide me, two week after activating the Humble key on their website. I did the Yoyo account myself, I used the HB key there, and i'm waiting for the steam key. I even let two days of delay between when I can get the Steam key and the Giveway end, in case something goes wrong and i have to delete before it's over.

А хуйца тебе не соснуть вместо доказательств