boocs:
Your "what a shame" can easily be explained. It's because Pprune is polluted, it's as simple as that.
You may recall an important political meeting at which Chairman Mao Tze-Tung opened by telling the assembly that "if you don't have experience of the problem or you do not have the facts then you are not permitted to speak". (That's the English translation, the Chinese original is even more positive). What a pity something like that can't be clamped down on the fool's that infest Pprune.
828a