BUR #9831 has been approved by @evazion.
Currently this tag is used for characters that share no common characteristics.
Aqua is often canonically tagged as goddess despite looking at most like a mage.
Scylla looks like a normal "viking" woman.
Nyx looks like a dark_elf witch of sorts.
Palutena looks like a valkyrie.
Euryale just looks like a normal girl in most of the posts.
Without canonical knowledge none of these stand out as a goddess to me.
Going by the wiki, any character that looks "holy" or has a halo or angel_wings is/can be a goddess, which to me does not seem right, because that can apply to any angel that is sufficiently "holy", or any mage that looks wise or wears fancy enough clothes.
Updated by MiiaBestLamia