Dynamic Queue and Group Tags
Not sure if anyone else had noticed this. I recently played a game where I had a 4-man premade and the enemy had a 4-man premade. Since you can see their tags in the loading screen, you know which players are premade and which player is the odd one out. The premade on my team practically singled out the player who wasn't premade and constantly 4-man dove him/her. They basically made the game a nightmare for this player. I asked them why they were so focused on that one player and they responded, "He isn't with the premade so he is an easier target because he probably has less communication with the rest of the team."
Not sure if this will be a problem or not because good premades can easily take advantage of another premade trying to do this, but the struggles of a solo player are real.