@2042isNotBF
I am a major melee enthusiast and was one of the top tag hunters in BF3 and BF1; I can't quite describe the rush I get when I'm hunting someone so I totally get what you mean.
Sure, you can't wear the tags you take but it's nice to be able to look at your collection every once in a while. It was fun back in the day when it actually showed who you stole the tag from too - my memory is usually quite poor at times but I remember those special kills as if they were big game prey lol.
To be honest, the reason I want the Hero tag is so I can be a part of more zombie events and give others the chance at this super rare (on ps4 at least) tag. Over the years I've met some great people and became good friends with some of the more well known members of the community and I think others need to experience it. Of course, helping others in general is a great thing to do too.