Assuming you mean that your professor will google it and see if anyone posted his questions online,

If you want to post it in Drugs & Alcohol, I'll give you special permission to do so, and I'll just lock it after it's done. It's the only forum outside Gaia that isn't on Google. Entire thing is only accessible to people who are members, have 25 posts, positive rep, and been a member for a week.

So literally nobody is going to be able to search any engine for it.