Board Thread:General Discussion/@comment-20551-20181015063237/@comment-18172179-20181017042224

Koavf wrote: Shadzane wrote: We don't tag or. If someone appears one time, that *is* his first appearance; nothing is misleading about that.

Their first and only appearance.

As opposed to characters that have multiple appearances, only applies perfectly for these characters. There's no need to change that to 1st, because that is used to give historical relevance to characters whose first appearance is actually noteworthy.