Hi Moon. Here's my two cents worth.
I almost leave my questions open for at least 24 hours. If I ask a stupid question on P&S, for example, I will resolve it within a couple days, so that it is behind me.
If I ask a deep and thought provoking question, I will extend the expiration date for the whole week in most cases. Sometimes the best answer comes along at the very last minute, and that is worth waiting for.
Conversely, other times I might close a good question as soon as I see that great answer come along. Sometimes a great answer will come along immediately, and I am determined to give that person a best answer, because I know that nothing else will probably top it. It's only fair to them.
A lot of times I will give a best answer because someone really," speaks my language" so to speak. I will give B/A to both an Einstein or to smeone who speaks in laymans terms. It depends on how well I agree with it. Sometimes one word will do it, other times a long diatribe will make practical sense.
The main thing is to resolve the question for the courtesy of all the people who took time to respond. I've only let a few slip by. I like a variety of responses, so I do my best to thank them all. I also try not to have too many questions open at once so I don't fall behind or feel overwhelmed by all of this.
There will always be other questions to try to answer, so don't feel bad or worry about it. Everyone has their own style on here, their own life to live, and all the quirks that vary from individual to individual.
Anyway, that my two pennies. Have a good day Moon.