Removing solo queue is probably the worst decision Riot has made in a while.
Ok, first of all, Riot blatantly lied to us when they said that solo queue will return. Then they say that they FULLY KNOW that dynamic isn't a proper display of personal skill, yet they're still gonna make it the system for ranked. If this is going to be how it is from here on out, they need to find a way to prevent 4 man premades completely ruining the game for the one solo player, like has happened to me time and time again. Yesterday alone I was matched with 2 4 man premade groups, one of which was decent playing-wise but toxic as all hell, the other group said nothing other than "hope you enjoy the loss" and all 4 of them ran down mid all game. I don't understand how Riot can knowingly allow this to be possible. I know that it doesn't happen every game or even most games, but the games that it does happen are completely ruined for that one solo person and there's absolutely nothing they can do about it other than accept that they just lost lp for no reason other than 4 people decided to be toxic trolls, report them, and move on. One person trolling, which is what would happen in normal solo queue, still had a chance of being winnable, I've won several 4v5s before, but you can't expect the one solo player to carry a game that's essentially a 1v9.