I came onto the forums today on a whim, and I'm gonna be honest I was a little confused for awhile. I have never heard of Tyler1, Meteos, Nicktron, or Kaceyton. So, from an unattached perspective I'm not sure what the fuss is about.
If Tyler has been banned 19 times in the past I don't see why is such a surprise that he's been banned again? And who is to say the Riot wont ban the other steamers mentioned? It seems pretty clear that Tyler1 was a bigger problem so maybe they just addressed this guy first. At the end of the day there is one less troll playing the game so what's the problem? A person isn't playing a game anymore. That is literally all that happened.
P.S. It's kind of funny that some Tyler1 fans are complaining about the fact League players are ultra sensitive when they are the ones getting so upset about something so inconsequential.