Correlation between Ranks and Skill Level (Video)
Summary: I met a couple of players in a 5v5 match who started a debate over each other's skill level in the game based on the champion they're currently using, and based on their current rank. Let's just say their debate got a bit too intense.
A person's rank should not be used to humiliate them. Perhaps the person who achieved Silver V or some other rank earned it as a personal milestone, which should be respected.
The Ranking System is a good way to show off that you worked hard to acquire your personal achievement, and it should not be used as a weapon to belittle someone. People who do this ruin the experience for everyone.
Games are meant to be played for fun, and League of Legends is no exception.
I would love to hear everyone's opinion about this subject. Feel free to add in your thoughts!
EDIT: I totally forgot you can see player's usernames above their champions. Unfortunately, it's too late for me to blur it out now.