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The short answer is that you can't assume you are going to get any answers, and certainly not with any speed.
The speed of response is heavily influenced by time-zones and working patterns. I rarely answer stuff before lunch, unless I'm going into London that day and have a little time on the train. My first answers mostly get posted as India goes to bed and the US is getting up.
Everyone here is a volunteer answerer (with a few edge cases - some of the Atlassians active here have answering certain types of questions as part of their job, and I have "time on Community" as a timesheet code for mine). That means there is no imperative to answer fast, or at all.
The best thing you can do is ask questions well - ones that pique our interest, have enough detail for us to work with, and, ideally, demonstrate that you have actually tried to solve it for yourself (i.e. put us in a place where we aren't rolling our eyes and trying not to type RTFM or LMGTFY into our response - most answerers want to help you properly, not just point you to a page you should have read before asking the question because it solves it faster than we ever could)
When you're not getting a response, by all means, respond again on the question - anyone who is watching it, or has commented/answered will be notified, and most of us are pretty good at picking up again.
In my case, I've usually forgotten about the thread because I don't have a good memory, so a "hey, did we get further" reminder is actually welcome, plus I have a bit of a grasshopper attention sp.... ohh, shiny new thing, let's look at that now...
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