Hi there @JenniferBooth (and others). Thanks for getting in touch.
We've had a look at the thread you specifically mention and we think as a whole it's ok. If there are any particular posts that you think we need a closer look at though, please do just hit the report button.
We don't feel it's a subject we can stop people discussing really. If rules are being broken, however, and there are personal attacks there or that sort of thing, that's different and we'd delete anything like that. Similarly, if you suspected that someone was on Mumsnet JUST to post about this kind of topic in order to stir up trouble, we'd always be happy to take a look behind the scenes and make sure they were here to post in a genuine way.
Usually, when we get a run of threads on a topic like this it's simply because seeing another thread on the subject has reminded people of a situation in their own lives, so they also post about it. But we can see that occasionally it can feel a bit wearisome. You can always 'hide' threads from yourself so they don't pop up again whenever you log on, but as we say, if you ever have any doubts please do just report them. We're always happy to take a look and check so don't worry about being 'wrong' or anything like that.