I joined and was blocked within about 30 minutes. On receiving email notifications that I had messages, I tried to log in and was told that my account had been blocked. That's it. No further information. No way to contact them and ask about it as their contact page is missing (404).
I hadn't written anything untoward in my intro and had not even put up a profile picture.
Waste of time, but at least it wasn't much time. Other sites are available. Interpals seems fun, so far.