Why are lots of meta questions about learning and improving poorly received?

I’ve read many Meta questions that ask for advice with improving poorly-received Stack Overflow questions. The authors seem to be posting in good faith and putting forth honest attempts to learn and grow by asking for feedback. Yet their Meta questions are often heavily downvoted. How come?

Based on what I’ve seen,

• the ones that get downvoted are about SO questions that are of pretty poor quality
• the ones that get upvoted are about SO questions that are almost good

I guess Meta users vote on “how do I improve this specific (downvoted) question” questions based on the qualities of the Stack Overflow questions that the askers want to receive feedback about. This behavior makes no sense to me; they’re all on Meta to try and learn from constructive criticism about their questions. Even if a Stack Overflow question is unsalvageable, there’s nothing wrong with asking what’s wrong with it and how to be better next time. Having asked a bad question is precisely the reason to go on Meta to learn how to make one’s question(s) better.

Am I missing something? Why do meta questions about learning and improving get downvoted so often?

Examples:

• How should I have better asked this meta question?
• Help Me Understanding Downvote Reason for Knowledge Sharing Question
• How to improve an on-hold question?
• Question feedback
• How to improve my question about how to completely disable a form?
• Why my questions immediately getting Downvotes? How to improve?
• How can I improve questions marked as duplicate?
• Please help me understand how to improve my question
• What can I improve about my question to ensure it is on-topic and meets the guidelines?
• Did I do something I shouldn't have done? downvotes on my post

Apparently, quite a few Meta users regard this sort of meta questions as whining/complaining about downvotes/rep-loss. I just don’t see it this way. I see genuine inquiries for (1) understanding the reasons that some questions were poorly received by the community and (2) learning to improve these questions (and to ask better questions down the road). I don’t find them whiny at all. What am I getting wrong about the culture in the Meta Stack Overflow community? Is it actually frowned-upon to ask for feedback on poorly-received questions? Are questions asking for feedback on particular low-score questions often perceived as whining, and why?