I don’t think anyone has actually enforced this rule in the past few months(maybe even years). Furthermore, The discord rules are much laxer because of rule 8
id say the reason this rule exists is like imagine if i tried pinging, say, Шакаибіаи, then i couldnt write @W and have it autofill. but if his NICKNAME is Шакаибіаи and his normal name is Wakandian, then its ok because it will autofill @W to be @Wakandian