User blog comment:Warwick-is-love/A little idea for ranked games.../@comment-5266525-20150706090603

You're heavily misinformed. Current ranks for players aren't shown in the game proper anywhere, let alone enemies' ranks. Past season achievements are only shown for allies, or if you have the summoner icon.

You'd rather play a 4v5 with a gold vending machine on your side than a 4v5 with an AFK safely stashed away in the fountain. I'm not sure I agree with that too much.