At the end of the lecture you show us how to enable bbcode and how to access it from the script. However, you don’t show us immediately what point that has or how to include bbcode and make words bold, different colors, etc. You also don’t mention that we’re even going to do that in the future.
And, in fact, in the very next video you go back to NOT using bbcode, saying you see no point in using it.
Perhaps it would be best to ignore the bbcode function until you show how to use it? Otherwise it seems rather confusing and unnecessary.