Because no one has decided to edit it in. Or they did, and someone else decided it was too much and removed it. There’s not one unified policy. Or, well, there probably is a broad policy if you dig into the Wikipedia policy pages, but there’s no absolute rule for which things get linked and which don’t.
Remember, if you see an article that references something, and you feel like the something should be a wiki link, you can make that happen. I’ve done it plenty of times. Usually just the first time it’s mentioned is sufficient.
Latest Answers