Your sign-up page doesn't mention an email verification step. It took me a while to figure it out. I finally did figure it out because after I'd tried to login

Your sign-up page doesn't mention an email verification step. It took me a while to figure it out. I finally did figure it out because after I'd tried to login a couple of time (without a good error message), and tried to register the second time I was told my email address was in use. Then I used the password reminder link, which finally lead me to my spam folder. In my spam folder was not only the password reminder but also the account verification. Not such a good user experience. On a side note, the fact that your emails to me go immediately in my spam (on my @yahoo.com account) doesn't give me confidence in using your email service.