My opinion is that the statistic showing 75.52% closed answers is due to the site being MIS-BRANDED.
As a newcomer, I came to the "Christianity S.E." site just a few days ago, thrilled in thinking that I had finally stumbled upon something I have been seeking for a very long time: a forum in which I could discuss some of my burning questions about faith, God and the Bible with other Christians in a civilized format with high standards on research. (Read: not Facebook.)
It surprises me to be disappointed, as I gradually have come to realize that this is not what is being offered here, and I have spent literally hours over the past couple of days reading many many posts, trying to figure out what exactly is the self-identity and core reason for existence of this site. It is amazing to see, as a person with fresh eyes, how much energy everyone here puts into sorting questions into 'acceptable' and 'off-topic' piles. To be brutally honest, it is a huge detractor from what I 'think' the actual original spirit of the site was likely envisioned to be. You all are working very hard on lots of stuff that is extraneous to your core purpose - whatever that is. To me, that is a symptom of a problem, and I think the problem is that it takes too much time and effort for the average person who comes along with a question to figure out who and what this site is all about, so as a result a huge volume of questions are produced, based on mis-understanding the rules, and what follows is that dealing with that erroneous volume has taken over the work of the site.
This is not to say that what the site has purposed to do is not wonderful. The more I investigate, the more respect I have for the level of thought and integrity represented here, and the hours of work that go into formulating well-researched answers. I just think you should realize that you are calling yourself one thing, and being another, which is creating masses of distracting mop-up work.
Altough I am extremely new, and some could rightly say I am too new to chime in on this over-arching topic (although by the privileges system I am allowed to write an answer...,) I am not the type of person who is comfortable lurking - I am here because I want to be a participant who contributes in a positive way. So I am expressing my obviously barely-informed opinion, with the hopes that at least I can contribute from the unique and very temporary perspective of a person who has 'fresh eyes.'
What my opinion boils down to is, I think the problem is the title of the site. Based on first appearances, people think that a site titled "Christianity" is a site where Christianity can be discussed, when in actuality, discussions here are limited to topics specifically defined within Christian Religions, Denominations and Traditions - I think. (This is where I may be completely off, because I still feel unsure how to define what is meant to be discussed here. I fully expect this last sentence to be corrected, a lot.)
I hope that @Nathaniel chimes in here, as one small line in his first answer in the 2017 Moderator Election Q&A Questionnaire alludes to the point I am trying to make: The question was,
How, specifically, would you go about creating and maintaining an atmosphere at Christianity.SE in which new users of the site, who don't know the site's rules and culture, feel welcomed to participate in the site while they are learning and navigating its rather complex rules and culture? How would you make it more likely that new users will become regular users?
Part of @Nathaniel's answer was (emphasis mine):
Manage expectations: When was the last time you walked into a store, asked about a product being prominently advertised in the window, and been told that it hasn't been sold in that establishment for the past two years? It's a bad look – it confuses and frustrates the customer, and makes it unlikely that they stay in your store, even if you have other things they may want. I see two ways that we do something similar: a) we have a generic name that might seem to invite any question related to Christianity and b) we have hundreds of closed questions that we as regular users rarely see but that thousands of brand-new visitors see first when they find us through a search engine.
@Nathaniel, I totally agree: you do have a generic name that seems to invite any question related to Christianity. Have you ever thought of changing it?