“Bad question” warning without any negative question

Question

I got a warning on tex.stackexchange.com:

Wait! Some of your past questions have not been well-received, and you're in danger of being blocked from asking any more.

For help formulating a clear, useful question, see: How do I ask a good question?

Also, edit your previous questions to improve formatting and clarity.

However, I have 3 questions posted there, with +5, +2, +-0 reputation. What is happening here? I'll file this under "bug" because I suspect so, but feel free to remove it in case I'm wrong.

Answer 1

I could understand such a message if a substantial part of a user's questions were closed as “off-topic“, “too broad” or “unclear what you're asking”, or several got downvoted.

Closing as duplicate might mean that someone with more experience found a question that could apply also in a different case and the unexperienced questioner couldn't realize it. So the “closed” mark is not sufficient, in this case, to judge the quality of a question, much more if it has been upvoted. Four questions, three of which upvoted, should not trigger such a warning, in my opinion.

Considering a “closed as duplicate” question as “not well-received” (read “bad”) is, in my opinion, greatly exaggerated¹ (read “stretched out”).

_{The reports of my death are greatly exaggerated. (Mark Twain)}