This happens very often in newer lobbies (I lost my old account). Players will card trade at the earliest moment and self-destruct on you for little to no reason (like stacking near them, getting a bonus). This often leads to getting eliminated on the third turn, making the game nearly unplayable.
I don't know how this can be prevented, since it's hard to tell between going for a worthwhile elimination and a self-destruction. Maybe there can be a limit to how much each player can be attacked within the first four turns, or temporary bans if you always lose with another person very early on.