Board Thread:Questions and Answers/@comment-19159073-20130913040547/@comment-6697950-20130913055721

If it is not mentioned anywhere (e.g. the meaning of Aincrad is already mentioned at the top of the Aincrad page, so don't add the same thing to its trivia) and you can find a good place to mention it on, then sure. However, such facts must be sourced. If the information conflicts with sources that have more priority (LN and ME - highest, manga - second highest, anime - low, anything else (including special episodes) - lowest), the higher priority sources dominate.