I'm amazed how people are mad now.
After a bit i thought that this could become reality because the request was crazy so i understand the disappointment (i'm slightly disappointed myself), but the possibility of this being a joke was still too high to waste any time into this, so stop blaming him for your time. From disappointed to being mad there is a lot of difference.
He clearly stated that any comment before the 24 hours would get the discount and you could decide your kits later, so it was so easy to understand that you guys had only one job: put a placeholder comment and edit it after april 1 if by any chance the GB was real.
You guys decided to waste time into it and no one is to blame except yourself, yeah you are a fool in that case, accept it.
If Oneplus shows an electric car on April 1, you delete your order for a Tesla? If some cpu/gpu producer shows his new superbenchmark on April 1, you delete your order for your new PC?
You guys are insane, or Fools!