/spectate someone, killbind, change camera 1st to 3rd person. This will cause your playermodel to respawn, but you're still spectating the player. Trails and items still render so things get messy to the player your spectating. No one can spectate you and the leader board indicates you're not spectating anyone at all. You can move your playermodel while spectating, hug people, change stages, save etc. my own player model stays invisible on my end but others see it.