Why do so many ximmers flaunt the fact that they’re cheating?

I’m pretty new to the game, I downloaded it right when Siege X came out. Right away, it struck me how many people I saw with “xim” in their username. I also very regularly see ximmers spam crouch or do extremely fast 360’s if they get the final killcam. Are lots of these people flaunting their cheats just 12 year olds being edgy? It feels like this is happening almost every game in my plat lobbies.