I think if what she wanted was like one of the threads on GAF, ie: Black Culture, BritGAF, GermanGAF, LGBT, ChristianityGAF, etc, etc, etc than there's no issues at all.
We have all those threads on GAF, and though I fit ZERO of the criteria of the OP's listed above, I am free to read or participate (within the forum rules) with no fear.
Take this from the BCT:
Welcome to the BCT. Where everything from Little Caesars to 'what's hot on the streets' is up for debate. First off, we'd just want to thank everyone that has made a contribution to this thread, community, or across the forums in one of the many race-related threads in the past or plans to do so in the future. Its not easy and I know it gets old, but its appreciated and necessary. Next, this isn't a "Blacks Only" spot by any means. Any and all are free to hop in. Consider it open mic. All are welcome to keep it real.
None of these threads are meant as exclusionary in the slightest, but they are havens for people of these groups to participate and share common experiences. They are moderated for trolls or inappropriate comments.. the rules of GAF apply just like anywhere else.
If that is what she wished for, any one in uproar deserves the ban hammer.
I'm not for excluded groups though, not a public discussion forum that isn't exclusionary to begin with. Posting on a forum is a privilege though, not a right.. unless you own it.
The GAF approach to these issues makes much more sense... give people the OT and ban the asshats who won't to troll or spoil things.
The approach the OP (on the other forum) went for with wanting a closed-off section is the wrong approach to take.. and it's not at all surprising that things went down the way they did.
If that same thread was posted on GAF, it would have been completely different. .