XV for sure. He was the embodiment of what made the blog era so dope. We got a chance to hear voices outside of the typical areas that were dominating hip hop. Idk any other era where we would have gotten a chance to hear a rapper from Kansas come out and drop some fire.
A person who calmly lets go is a person you'll never get back. They have learnt to see the peace in your absence, and decided to pick solitude over drama.