Mwah mwah mwah!
Seriously though, it might be polluting the boards, but it's an effective way to signal to newcomers that hugz'n'huns are infra dig on Mumsnet. There are genuine new posters (not NM stirrers) who lol and hug and x and the rest, and it's impossible to tell them not to without being a bitch, so all this pisstaking should spell it out nicely!