For what it’s worth, nothing in that link under the self-promotion rule mentions using that tag. It is only the link under the AI rule that instructs you to use one of those tags. If a developer did not use AI at all, they likely would not follow that link to read further into the AI rules and would therefore never see any rule instructing them to use some [CBH] tag. If you want non-AI developers to do something special, you should also mention that requirement under the relevant rule instead of just hiding that under the rules that only AI-devs will read the details of.