I believe you're talking about the dynamic nature of the content on the site (questions & answers) in combination with the commenting that can occur. It takes a little getting used to but there isn't really anything you can do beyond looking through the edit history on either your question or on the various answers you receive when asking questions.
NOTE: Each question and answer has a edit link under it where you can see a full history of the various changes that were made over time and by whom.
With time you'll adapt to the pace at which solutions to your question are thrown at you, and can evolve over time.
Stack Exchange sites are unique in this dynamic nature, most people are accustom to a more traditional forum where you ask your question and then it remains there in stasis, and you as the questioner don't have to do a lot of interacting afterwords.
Here questions and answers can be edited as new information is revealed, so it's expected that questioners take a more active role in helping to solve their questions.