There might be some matching with particular one and U seem to be exactly right that some awarded B.A. to a particular answerer always. Recently I'm trying to avoid answering to these particular questioners. Regards.
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Most questioners want to hear only those answer which agree with their opinions. If anyone gives an objective answer which reflects the truth, it is seen as an affront and irrlevant observations are made against it.
For example once I came across a question asking about the origins of a particular quote. One answerer attributed that quote to John Kennedy (rightly) and added that it had been addresed to Obama. This was acccepted and marked BA by the questioner. When I pointed out that how could this be possible because Obama (born August 4, 1961) just two years old when Kennedy died (November 22, 1963), I was rebuffed by the questioner, saying that entire world had heard Kennedy telling this to Obama.
So, it makes sense to humour te questioner and give answer according to his level of thinking