I hope this isn't just another "why" question, but if it is I want to learn from it.
I posted the first answer to this question, at which time it was:
Hence my answer:
Then I went offline for eight hours (you know, to sleep :]). Now, I see since posting my answer, the OP materially edited the question, indicating what he meant to ask was:
...how I can find the wireless MAC address (aka BSSID) of any wireless access point with aircrack-ng...
Fair enough; he didn't ask what he wanted to on his first attempt. But why was my answer judged against the edited version of the question? Shouldn't it instead have been downvoted, giving me the opportunity to revise it if I wished (or perhaps earn the Peer Pressure badge)?