To everyone saying knowing who's solo/premade is bad for solo players
It's not. The reason being that if you're laneing against one member of a premade, the other is going to help them vs you regardless (especially if one is jg). If they know you're solo, they'll just do what they were already planning to do anyway, but if you the solo player are aware, it's much easier to defend against it and not be caught off guard by premade cheese strats. Also, your team will be aware that you are most likely going to get camped and can play accordingly. The point is, it's far better for us to know who in our games is solo/premade than it is to not know.