This is extremely serious.
Not least because a number of women have been placed at risk. For women with abusive men in their backgrounds the potential for it to be a fatal mistake and subsequent risk is ever-present. This may also put her children at risk. Family annihilation is not uncommon. Women leave an abuser's entire sphere for a reason. Refuges locate women away from an area - FOR A REASON. Exposing that is life-threatening.
For women with careers where free expression of online views breaches company policy they may lose jobs. Trans activists have openly targeted women who dissent from their ideological position by targeting their employment. They have zero care about what will happen as a result to the children of those women when they lose jobs. TAs have shown how ruthless they can be in this.
Beyond that - for women who were possibly unaware that they were posting in a way that might threaten their life, career, children, this will have been a terrifying experience. The sheer terror of suddenly being thrown into the full realisation of what declaring your view - that your biological sex is real - is an expensive declaration (with costs to your present and future existence) is overwhelming for some. Women have yet to become attuned to the bigger picture of all this. It is a dystopian future in the all too present.
For those with mental ill-health the threat to their security is extremely damaging. The already anxious will have been escalated.
Women come with complex background situations. Demanding they are aware of more technical aspects of online connectivity which helps them - demanding they use VPN etc - will be too much and they may withdraw from an online communication lifeline. A literal lifeline. What women say in trust on MN may be a front for an awful RL experience and they may be gaining the information to free themselves. If those women withdraw from the network of support then the woman breaching data has been responsible for returning women to a life with abusers where they feel no glimmer of hope. That is a daily loss of hope. That is daily misery she's imposed.
This woman may apologise. That is not quite enough.
It is important that she realises the extent of her mistake. She could attempt to realise just exactly how she has been used to harm other women and she could realise the misogyny in that. If she does then the best thing she can do to repair this horrific damage is to share with the world - not the views of violent males intent upon harming women as this was - but exactly how those males are exploiting and pressuring her.
If she denies that this is the case. Then she has no way of being forgiven by women. She may not be forgiven anyway. She probably will be prosecuted because whether MN do it as employer - women can and should if pursue this independently. It is their right to pursue crimes against them. Women have no obligation to compassion when they are harmed. It is not a biological trait.
If it was me - I probably would not insist another woman was prosecuted - especially a woman manipulated by males. I'd try to find a way to make the males using her accountable. Maybe there's a way to do that.
But ..... that woman would have to do something far more significant to help the women's movement in return for some sort of forgiveness than a brief "Soz like" ...before running back to the comfortable shelter of her manipulators to gather their cookies for her work in harming and exposing women to danger.
Mumsnet need to do more. Much more. Great harm has been done here.
These are not times where women can afford to look to one side when they are under attack.
MN must declare what they will do beyond a simple acceptance of apology.