Why can’t I disable cross platform? What’s with heirlooms getting benefits?

@XxColdFangxXAs bigmac said, there are ways which will likely result in a ban so don't do it. It is very obvious when a player is on mnk. Many use mechanical keyboards that their mics pick up the sound. Also if you spectate someone strafing on a box, it's usually an mnk user. Note that you can move on a box with a controller for a quick swap so the people you see jumping initially are not doing this.