I feel that - before I go - I have to make two very important points.
First, please don't be fooled into thinking that this new board is a 'safe space'. Sadly, nowhere on the internet is a safe space. This is a dedicated board, but as we've seen with the Black Mumsnetters board, it doesn't stop those who want to cause trouble, or who want to exercise their own prejudice, from posting. And even if it's not in active conversations, it won't be any safer, sad to say.
Related to that, second, it's really important that you understand that MNHQ don't pre-moderate any threads/posts. So it's up to all of us to report any thread or post that is against Talk Guidelines. If they're not reported, then MNHQ don't see them, so those threads/posts get left to stand.
And now I'll piss off and leave you in peace!