A bit rude are we? It would have been more useful to simply mention the other list, which I clearly was not aware of. Also, "discussion followed on whether this is a positive development, and whether a number of other divisions will (or should) spring up after this."
If anyone really would like to complain that this is sexist or not useful in creating a friendlier environment to women, then so be it, but these groups will exist either way. Because minority groups need to exist this moment in time for people to feel more comfortable in their own domains. This has consistently shown positive results with in diverse populations. Far in the future, when equality is achieved for all people, perhaps these types of groups will be null and void.
The Gender Gap list will remain and allow for men to participate with women anyway, so it's no biggie.
--Maggie