so none of us on big lotto at freebitco, but I have seen some id won more than once , so I have doubt that this ids are fake or these are ids of their own
Not all the members that win a big prize on freebitco.in are member here, they are online since many years and are legit so they will not fake any ids or something like that. If you visit the following topic, you will find many people (mainly newbies, but also senior members) who have post their proof on bitcointalk:
https://bitcointalk.org/index.php?topic=1850855.140