We don't have all the answers at our fingertips. While it would be nice to say that we have a crack team of experts working around the clock (thank you to all the flairs), not everyone with sufficient time, interest, and expertise is available to answer a question when it is asked, so some questions are missed, and others just cover subjects so obscure that they're difficult to answer.

The answers we do have are moderated to meet our standards. Many of our most outstanding users spend considerable time researching their answers, and go into tremendous detail - users like u/Georgy_K_Zhukov, u/sunagainstgold, u/WARitter, u/AnnalsPornographie, u/freedmanspatrol and too many others to easily list - and sometimes that means that the answer gets delayed until the thread drops off the first page of results. There are many good answers to questions that get asked repeatedly, if you search for them.

If there is a question you really want the answer to, and it hasn't been covered to your satisfaction before, feel free wait a week and repost it.

I once published a book that dealt with this sort of question; in many ways the question you raise about unanswered questions is not unique to /r/AskHistorians. Too often the questions we really want answered linger out there without answers because if they were easy to answer, they wouldn't have inspired the profound curiosity that keeps us looking and itching for answers. The subject of the book and the specifics of what I was dealing with don't matter as much as the generic theme underlying the excerpt:

The answer to these questions will probably remain elusive. Our fascination with the past often thrives most at the edge of the abyss. We stand on the solid ground of facts and peer into the shadows where motivations, thoughts, and attitudes are ill-defined, and imagination soars. Too often, it is only possible to speculate.

I've been only able to find one question you asked in the past three months, but the answer is that getting an answer depends on many factors - the expert on the topic has to see the question, have enough time to write an answer, feel that they are knowledgeable enough to answer and so on. If you don't get your answer on your first try, there is no rule in place that stops you from posting the same question again few days later, maybe at a slightly different time. I would definitely suggest you repost your questions in the Sunday Digest thread. I do make an effort to collect interesting unanswered questions there every week, but I obviously miss quite a lot of them due to the volume of posts.

Because often the most interesting questions tend to be specific to a point where we just might not have an answer. "How did ordinary peasants feel about King whoever in the 3rd century?" Who knows mate. They didn't write it down.

Just to add one more reason/excuse to all the others here.

A lot of flairs (like me) have been having trouble with IFTTT the past few months and have not been receiving notices of questions posted. The busy/lazy flairs (like me) don't go through all the new posted questions to see if any need answering (I just look at front page, maybe second).

So if the past few months you asked a question that I could've answered but didn't because I missed it, I apologize.

Reddit isn't really the ideal showcase for Ask Historians' answers. It's a good platform because this is where people are. When it works out, it allows people who want to know things to connect with people who know them, but viewing the subreddit via its popular posts reaching R/All, or even just looking at the front page here, will lead you to missing out on the bulk of really good answers. The Sunday thread about the best/missed posts from the last week is really interesting, and I often browse the sub by AskHistorians/comments, where you can see what interesting new stuff is coming out, and then go to the thread to learn more.

What sort of questions are you most interested in? It could be that they are inherently hard, or possibly that you're interested in one of the gaps among the topic experts here. (For example, I'm particularly interested in economic history, which used to be quite a poorly-served area.)