If WINE can run Winsock 2 programs, that's nice, but I wouldn't ding it too badly in the FAQ if it couldn't. The WINE people should take that to mean that I think their efforts are much better spent elsewhere. The former shouldn't be running under WINE, ever, and the latter is a minority of applications. And other Winsock 2 functionality would definitely not be a release-critical component. There are no specific plans.
People just implement what they want to have.
And there are no current efforts on Winsock functionality. Andreas Mohr investigated this further. Reading from the right descriptor solved the issue. Strange that we never noticed. This patch allows to create link files to be added to the menus of KDE or Gnome windows managers.