Blocking someone & why it doesn't work
I'm not sure if anyone else noticed this, but there is a serious design flaw with italki - and this is regarding the option to "block" someone.
When you block someone, they can't see your profile and they won't be able to message you. On the other hand, they can log out and still view your profile (if they have the link to your profile). Your profile also shows you when you were last online and there's no way to change this.
Now, I'm thinking about deleting this account permanently and starting a new account with nothing on my profile. I just think it's too bad that we have to worry about harassment and phishing scams on an educational website, such as this one.