It's called editorial control!
As pointed out above, it has not gone anywhere but just moved down the topic list. Try using the 'Show Topics from...' drop down menu. If you're not sure about how to use that then please read the FAQ's.
If it isn't too difficult to comprehend, I try to keep this forum for Rumours & News. Occasionally if I think a topic doesn't quite fit that category I may still leave it to see how it develops. If it ends up just being a petty and immature slagging match then I will either close it or move it.
Topics such as this one are obviously not Rumour or News so I will close it. Hopefully your question has been answered. if it hasn't then please use the email link at the bottom of every forum page to email me with your views, complaints, pledges of huge sums of money or whatever. Just stop using this forum for these non-R & N questions, please!
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Capt PPRuNe
aka Danny Fyne
The Professional Pilots RUmour NEtwork