Thanks for sharing that.
Reason I didn't contact them was my hope that the issue I saw on the site was only temporary.
I also have many domains with register.to but the biggest issue, for me, is the thousands $$ I have in account funds that I will most probably never get back.
What sucks even more is the fact that, due to the registry terminating their ties with register.to, I'm not able to use those funds to renew the domains. Renewals and transfers still worked even when the website seemed abandoned :/