# Why isn't the [artificial-intelligence] tag blacklisted?

I've seen several questions that use the tag, sometimes as the only tag on the question. That is not useful for categorizing questions, so please don't add this to your question.

For this reason, the site name is usually blacklisted as tag name.

However, the way the system works means that it doesn't always work. The system takes the URL slug before .stackexchange.com, and blacklists that as an intrinsic tag. For this site, that means that the tag is blacklisted, but is not. That's the explanation of the bug.