I was the one who nominated Lin Chen/Jingyan (NiF), and I'd have rather kept that tag as well as the other shorter standard-letter options- the canonical AO3 versions with diacritics are harder to enter and select and use, and the three-piped version of MCS' name is just huge and unwieldy and unnecessary.

(See also the same issue being discussed for other Chinese canons including MDZS and Guardian)