I can honestly say I've yet to play with anyone who doesn't have his/her stats linked on DTR and they're not just Hunter mains. I main a Titan as do many of my friends along and we all have our stats linked. It's not just k/d people care about. Some people care more about their True Skill, some about their win rate, others about their weapon stats. There's a lot of info on DTR. It's not like you pull up the site and it's just a big picture of your overall k/d.