Yes. We all watched fighting when people pulled hair or bare knuckled a nut sack. That's something you have to see happen to someone else over and over so you can plan on how to defend it.
That is called a small achievement and all fighters are going through that every day. Even the punch drunk ones like Chuck Liddell, he works out nude. He gained a lot of experience like that I'm sure and good for him.
What I'm not getting at is how good it use to be, to watch fighters climb rankings and earnings in an organized fashion. When grudge matches were earned by chance/ability to reach the top again.
That is all.