It seems that I'm close to being banned from asking, I see the following message when trying to make a question:
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.
I made a some research on Meta and found other users with the same issue. I would to make a question and a suggestion.
The question is: How can I know which question(s) triggered the alert?
I can't find my banned/deleted/flagged questions anywhere and clicking "deleted recent questions" on my profile shows no questions.
I think that if someone gets this message he/she should be able to know exactly what question triggered the ban mechanism... That's the suggestion, as a feature-request. There are several reasons why a question may trigger the mechanism.
From the article (https://serverfault.com/help/how-to-ask). Maybe I'm off-topic often? Or maybe my formatting/grammar/spelling is poor? How can someone answer themselves these questions know without seeing the "offending" question?