Is a 4th level Lore Bard with 12 Charisma completely useless? I'm thinking so. The flavor is there, he is a Goblin that thinks he's handsome and wants to be popular, but I just think he's gonna be a hindrance to the team.
Correcting the correction.Charisma won't affect the number of spells or inspiration dice (unless your table is using a house rule), so you are fine there.