there is alot of factors that go into punishing trolls, as opposed to chat. chat rules are simple, you say rude shit, you get flagged/punished.
"trolling" requires a lot of explanation, its referring to when a player is intentionally trying to lose a game, however, gameplay has ALOT of factors going into them.
The difference between etiquette and rules
Etiquette is something you should do, but are not required.
its proper etiquette to cut your steak, but they can't stop me from slapping my friends with it and chewing on it like a piece of bread.
Rules are something YOU MUST follow.
its required I dress formally when entering a fancy venue, but if I don't, they might throw me back in my car.
**Etiquette in league **
-Leashing
-playing "meta"
-building correctly
-taking the right runes and stats
all of those are generally beneficial to the team, but its still possible to win without doing any of those, AP on hit ability based Vayne might be a shitty idea, but if she is trying her best to win, its still fine.
to summarize, Trolls are hard to detect and punish in a days time.
