Github asks you to type the name of the repo you want to delete. To make sure you are deleting what you were going to delete, not something else.
Mailchimp copied the idea, but asked you to just type the word “Delete”. So it’s basically a poor way to ask “Are you sure?”, without really making sure you know what you’re doing and e.g. not deleting the wrong field. They don’t even have the name of the field on the screen!
Also notice how Github’s button is big, red and dangerous, but Mailchimp has Cancel button right next to delete, which is slightly dangerous, but in a bad sense.
Be like Github. Don’t be like MailChimp.
Thanks @AdrianSieber for the MailChimp picture.