What exactly do you want to learn? To learn something, you have to be accurate in describing this thing, otherwise you will not learn. The forum is simple and easy to understand, the interface is a little outdated and there are several rules that you must follow and I will summarize them for you to avoid plagiarism, abuse of others, spam, and all activity that can lead to fraud. all rules can be found here https://bitcointalk.org/index.php?topic=703657.0.
Otherwise, you can express your ideas after you search for them and then ask them to correct them or add more information to them.