Could Yahoo explain publicly why it deletes some questions?

I mean - bloody hell, yet another question I've submitted an answer to ("Are UK Benefits just not enough to live on?") has been deleted - no explanation, no apology, just gone. I suspect the bloke posting it might have been a piss-taker, but it ANNOYS when I've considered the question and thought about the real issues involved and spent ten or fifteen minutes of my life trying to compose an informative and reasonable answer. And then it goes.

Incidentally, who at Yahoo is responsible for the filtering software that refuses to allow a three-letter slang word, in common use in English to denote "a cigarette" , to be posted in an answer, when it very clearly means "cigarette" from the context in which it's posted? I'm posting from Britain, my Yahoo address has "-co.uk" at the end, this site clearly distinguishes otherwise between British people and other English-speakers, so why the hell impose American language standards on us?