Hello! Just got an answer to my support ticket:
Thanks for checking with us. We definitely have not been hacked

We did however have a glitch over the weekend which resulted in some pages sending people in an infinite loop. That was fixed on Monday. However, some browsers "cache" this behaviour, so if it is still happening I would recommend you clear your cache or switch browsers.
We only use https on pages which have sensitive information - such as a login, purchase, or account info page. Regular pages do not use https at this time.
On short: everything is fine!
