You are allowed to ask in the open thread. I don't think having it more often would help. The SQ thread is for things that you are embarrassed or afraid to ask elsewhere. Apparently some people have questions that they didn't bring up before the first stupid questions thread.
Case in point - I, for one, would likely not have posted anything whatsoever were it not for Stupid Questions. There is enough jargon here that asking something reasonable can still be intimidating - what if it turns out to be common knowledge? Once you break the ice, it's easier, but count this as a sample of 1 supporting it.
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.