Is it not possible to politely explain to newcomers that (for as yet unexplained) reasons the convention on Mumsnet is not to start a thread about a thread.
Cos you see I think comments like this:
"are you new..?
get over it...and don't start threads about threads."
and
"A new thread about a thread where you have your arse handed to you is whining. Suck it up or argue on the thread, starting a new one just looks a bit sad".
are plain downright utterly bitchy.