Not true, I don't think, but I don't know everything. The are sent there to be purged of there sins. They will then be judged. I believe most who go to purgatory go to Heaven. However, in order to even go to purgatory one must have at least lived Christlike, if not in the faith. It is believed that one reduces or eliminates their time in purgatory by receiving the graces of God, via the sacraments.