As this topic was touched on in another thread, I thought I would mention that myself and another had toyed with this idea. I brought it back to life some years ago, and then handed the baton over to Curb_it.
The basic idea would be to meet once a year for a social in the city - although I currently work in Eltham making it a little awkward. Hopefully we could attract some new blood to help organise it, if so it could work.
I'm not sure what the appetite is however, if it's of interest to you please sign up to the Facebook page @cityaddicks
. If we get enough interest it may well be a goer.