Initials as first name?!

This is my fiance and I's first son together! He is set on the name K.R. Moore. His favorite uncle's name is LB literally just the initials...i know a lot of people probably are going to think its stupid but if it has meaning to him then should i just go ahead with it? I just don't wanna have to explain it to people or them say if K.R doesn't stand for anything why would we name our son that? I'm so confused on what to do. Or does anyone have any K names that are unique they can give me?!