Yes, but the problem is that you spend a bunch of time looking for search because you think this is just for adding questions. I agree that once you start typing you do see how it works and things start to fall in place.

For example, if you type the text “how can I lose weight?” in the field, you’ll get some potential matches to that question in the results. At this moment you have several options. You can 1) click on one of the results if it’s a close match, 2) perform a full search on the text you entered, or if neither of those options satisfy you, you can 3) click the “add question” button to start the process of adding that question to the site.

I wouldn’t deny, however, that the entire mechanism is nonstandard at best and confusing at worst.