I am new to Mumsnet so perhaps this has all be mentioned N million times before. How do the people who claim to know that person X is a troll or is posting using more than one identity actually know that they are. Apart from an IP addresses check, which are easily faked or changed or both, on the Mumsnet server how can people know the truth of what they claim? Do ordinary users have access to the logs generated? I'm not clear what new users brought in by the recent publicity with the PM are making of all this.