I just signed up for Itarian from a Comodo sales email.
When I tried to register I used a password which included a quote character ("). Clicking the submit button made the little animated worky gears appear, then the animation disappeared. No message or visible error indication. I tried hitting submit 3 times and the signup form had same behavior. I removed the quote character and the submit button functioned properly.
So it was either a ‘weird harold’ or maybe there’s a bug to check out.