Reading the threads/posts about the recent troll incursions, it's become obvious that many posters don't understand the role of The Night Watch. (I'm not talking about whether or not they're paid, which is a completely different - but massive - kettle of fish).
It seems that people don't know that there is a Night Watch, but especially how to contact the Night Watch, and that it's a different mechanism from the usual report process.
This is perhaps not surprising, as even if you know that The Night Watch topic is contained in the overall Mumsnet Stuff topic, it isn't visible in the first line of links under the Mumsnet Stuff heading. You have to click on that before The Night Watch becomes visible.
I think it would be a good idea to make a link to the Night Watch more prominent/visible - perhaps under the 'report' button?