@Lyx @FrailLeaf @Owl @Owl @cassidyclown @drewdevault @kent @p @pernia >just change the entire @ of the person [how it's stored internally]

the persons metadata would probably be stored in a metadata file

[id.json]
{
"username": "[user]@[instance]",
"displayName": "[display name]",
"postCount": 1337
}