I think the tag beneath a player’s name that shows what kit one is using should be removed. This is because knowing what kit your opponents have equipped defeats the point of the kit in the first place.
Void Walker - This kit’s primary use is to prevent void deaths. If people see your kit tag, they will be less likely to hit you into the void, rendering the kit useless. Furthermore, they know you will have an above average amount of snowballs so will stay away from the edge.
Trapper - It’s in the name really: anyone seen with this kit tag can be assumed to be trapping. Because of this, opponents won’t come near you, and they might try to instead use ranged attacks. They will also expect you to disappear occasionally, so won’t freak out too much if you do go invisible.
Baller - Same kind of thing with the Void Walker kit. Your opponent will know to expect snowballs so won’t go near the edge.
Builder - This kit is said to be receiving a block breaker boombox in the near future. Anyone knowing you have this kit would stay away from bridges in order to prevent being blown into the void.
Panik - Anyone knowing that you have this kit will know that you are basically semi-invincible. They will refrain from going near the edges in order to not get knocked off by the shields explosion. They will also be able to lure you into a situation where having speed can be more harmful than helpful.
These are just a few reasons why the kit tag should be removed.
TL;DR: Knowing what kit you have makes your opponent less likely to play to your kit’s strengths and they will instead exploit your weaknesses.