Didnt say i must know, just i was interested, if you didnt want me to know, all it took was either a polite 'i'd rather keep that to myself thank you', or just ignore the question. Wasnt exactly holding a gun to your head forcing you to answer.
Can to an extent understand why you have it set to that now, though given most people dont really look at the who's online box, and theres not many people who demand instant replies, plus no PM's for them to harrass you, so to me it doesnt really make much difference. Actually, left mine open for hours whilst i've gone out without realising, so it looks like i'm viewing OT all day, doesnt really make much difference.
Each to their own though