I find it pretentious. Other kids might be Salinger, Keats, etc. It's a parent trying to show off their literary knowledge.
It could also be that the person just wants something different from
Brian and likes the way
Byron sounds. In that case it's whatever. But I really can't stand people who name their kids after known literary figures - especially melodramatic romantic poets.
I have more to give! More words! More joke! MORE BANANAS! - Gerald