From the Exploding Kittens folks:
Not everyone will get the survey today.
You guys made history by making this BY FAR the most backed Kickstarter campaign of all time. 219,382 is a lot of backers! It’s also a lot of emails. If we send out all of your Backer Survey invites at once, the Email Gods will smite us with the fierceness of their mighty Spam Folder wrath.
As a result, the emails will start going out today and should wrap up in about five days.
If you don’t receive an email by Friday, check your Spam Folder. If you still don’t see the email, then you should email Exploding Kittens Support
If you email us before that time or without first checking your Spam Folder, we will laugh at you, and you will be sad.
affectionately suggesting that a week is nine days,
The Exploding Kittens Team
Love these people.