Yes I did and I find it silly. I've been a proud member of Gentoo Forums since 2005 and there is no such restriction. Every new member can post whatever they find appropriate, including links. And the forums are still well alive and not sunken into spam.
IMHO you are insulting new members. What happened to presumption of innocence, it used to be a cornerstone of our democracy?
Do you think police should have the right to handcuff anyone they like and take them to the court to figure out whether they did anything wrong or not?