I’m assuming you can ask in the relevant lecture thread (Lesson 1 etc…) or ask in the main forum for the specific version of the course/lesson your question is about.
Here is a link to Jeremy’s post regarding asking questions:
I think this forum should have Lesson threads broken down by general lesson discussion, lesson X related questions along with the main thread. I see some posts in the v3 course forum that are called “advanced” discussion which would naturally deter newbies from asking a question there. I know I would be a little intimidated barging into a forum with “advanced topics” in its title and asking a question I know is a beginner question 