There are already good questions and answers here on the subject When is it appropriate to answer your own question?, Should I answer my own questions immediately? but my question here is slightly different. If I'm specifically just trying to get some information out there it makes perfect sense to me to answer my own question immediately Can I test my oven temperature without an oven thermometer?. The question and answer are going to be right at the top of the new questions list, maximizing the number of people who will read the answer. Other times, I might not know my answer when I write the question Can you make a French Buttercream in a food processor? (Experiment Results).
Here's where I am seeing a gray area. What general rules should I follow to ensure that my measurements are accurate? The answers and comments that people have contributed are great and will without a doubt contribute to the usefulness of the question to the reader. For that reason, I'm glad that I'm waiting. On the other hand, I'm putting together a pretty involved essay with lots of examples and pictures. I'm really hoping that it will be of significant use to novice cooks. I want it to be seen. By adding my answer days after the question, the answer that is going to take considerable effort is going to be buried. I guess I'm showing my newbieness to a point, three years from now it's not going to make much of a difference, but is there a way to get the best of both worlds? Perhaps a way to "bump" a question with a new answer?