I just notice in my account for programmers.stackexchange.com

The following message:

Some of your past questions have not been well-received, and you're in danger of being blocked from asking any more.[1]

Here my questions on https://softwareengineering.stackexchange.com/users/30714/gibbok?tab=questions, they have all from 2 to 10 up votes, some where bookmarked.

Reading more on this site I have found this explanation for that warning message:

...heavily down-voted, zero-voted, or deleted posts. One or two bad posts will not cause you to be blocked from using the site...

I would like to ask you if this apply to my account, how could I improve my questions.