Oh!my god!one of my friend's ciao account has blocked for unknow reason!

Whenever we get blocked or suspended by a site we should look at the terms and conditions laid out by the owners. Ciao laid it out clearly that the English used for any review must be good. The grammar, spelling and punctuation must not have any errors. As I understand it Ciao is not as lenient as myLot on this matter. This could be the most probable reason. Another probable reason is your friend's IP address has been used by someone for unhealthy Internet activities. - rosdimy -