This happened to me on two occasions about two years ago, I can’t remember the domain names I was trying to register. In my case, the godaddy website I used was Godaddy.co.za (probably because I was based in South Africa). I thought it was a fluke or mistake from my side at the time, but seeing that others have experienced the same issue then I would say it’s a deliberate bad business practice by godaddy.
I've had a look at the demo site and it seems simplistic and impressive. I have been looking for a good HN clone that I can use for my blog. How can I install or port your version for a language other than Finnish? Couldn't find a helpful guide on the GitHub page.