Waves back at @Blondeshavemorefun!
For those who want to know how, you can find your registration number in My Mumsnet (top righthand side of the screen) under settings, I think.
Back when I joined, in 2006, there were some seriously unpleasant posters - there was a lot of 'oi, over to MSN!' calls so they could carry on their conversation privately (whilst making it clear that the rest of the posters weren't included). Although Moldies was a horrible time, MN was definitely better for it afterwards - and also because the site just got bigger.
However, one of the downsides of being bigger is the loss of things like Secret Santa and the Christmas meet-ups. I met lots of MNetters at various meet-ups, which was brilliant. MNHQ (including Justine and Carrie) used to come along to the London Christmas meet-up as well, and that was always good - a chance to put faces to names of those who are in the community team. But then, there was a real fall out over accusations that one MNetter I know had stolen money from others, and that really changed things for me. It made me realise that even though you've met people, 'socialised' with them on the forum, we never know who people really are. So that's when I pulled right back from meeting up with anyone again.
I don't think there's a big meet-up any more, unless like @Blondeshavemorefun I'm just not invited any more!