For the first one - I imagine people looked at summoners and saw it was a low level game, where the person obviously didn't know what they were doing. Game 3 is a total wash - Games 1 and 2 are "meh" able, he says "******" once, "idiot" once and "noob" once, but it looks like this guy is just a new player who doesn't know what he's doing (or saying, silly all chat spam). I can easily see why people pardoned this one.
For #2 - Guy's pretty negative in case 1 - Bit of being negativity in 2 - Nothing in 3, Nothing in 4, Pretty negative in case 5. On the edge with that one - I can see combining 1 and 5 to get a punish, but if people read 2-4 or even 1-4 I can see them pardoning too.