**You have a choice:**
A. You can be a site that is ruthless about "high quality" questions.
B. You can be a site that is useful to its users.
As you think about this, ask yourself what the purpose of a "high quality" questions site is. Who is it useful for? Is it to train some AI? I guess not. Is to make people who are already very clever and knowledgeable feel good about curating a site which tells them what they already know?
Or is it to be helpful to people who are asking question, likely imperfectly, precisely because they don't know. If they were experts already, they wouldn't need to ask. If they know what a "high quality" question was, they'd already write it. They're not asking low quality questions because they want to upset the experts who visit this site for some unknown reason (they already know it all).
**My Suggestion**
A lesson learned in new sites which have lots of user participation, is that the moderators are also part of the threat model.
With this in mind, please design your site to allow normal non-expert users to be able to flag unkind, unhelpful, or bad moderation.