Welcome to the Bitcointalk platform, a citadel of bitcoin education. Believe me, you will never regret your stay here as a member of this platform. Yes, you are correct that this platform has local boards, and so far, you are permitted to comment on your local board, as that would give you the opportunity to meet with people from the same locality as you are and also communicate with them in your best convenient way or your local language for better understanding.
As for the boards you have talked about, yes, there are rules, and each of the boards has its own rules pinned at the top of the page when you visit that board, and it will be very helpful to you if you makeout the time to read them, as it would guide you in your engagements on that board. I see reputable members have already provided links to posts and articles that would be of help to you. Maybe you could read them to help you more.