I would love a vote-kick for trade chat :)

Don't think it needs to exist.

The asininity level of League far outstrips that of a bad WoW battleground, much less the couple of less than stellar players you get from time to time in LFD. Probably a third of LFD and LFR get carried, but the WoW community doesn't feel the necessity to bash them into oblivion for getting so, the way a goodly number of LoL players do. Nor do as many people feel the need to actively harm their own team, and rage-quitting has a significantly lower impact in a system that auto-refills.

Blizzard's own report function is unneeded enough outside of gold spammers that it can handle the issues, without needing a large playerbase team to help them out. Also, even in LoL, sucking at the game is not a punishable offense. You may want a tribunal system to weed out all the people you think are "bad," or at least keep them away from you. But no system Blizzard creates would do so, and you must remember that LFD is designed to pair you such that you can carry or be carried. Rare is the equa-skill group.

I dunno what server you are on but I use report spam, ignore and actually report douches all the time. Keep in mind, I keep trade tabbed too. I have zero tolerance for it. I spend $15 a month so I can relax and have as little stress as possible in my gaming world.

If you read the article (or even just look at the pictures), it's quite clear that the "majority" will almost always be guilty. Only 6% of the people reported are pardoned. Which means that if you want your IP, "guilty" will be the right answer 94% of the time. The system is set up to actively encourage guilty votes.

Also, assuming that every guilty verdict is assigned to the GMs to review, then the GMs end up seeing 94% of the cases ANYWAY. Which makes the system pointless as well. Unless, of course the GMs just go along with the player votes (which is what they're probably doing).

The system is flawed fundamentally. People who lose games are reporting their teammates, and they try to spin it so it looks like they're doing some sort of service? No one likes to lose. People looking for someone to blame, instead of putting them on an ignore list or just not playing with them, get them BANNED?

Put a system like that in the hands of the WoW community, and I guarantee it'd be abused, and you say LoLs is worse? Guilds already abuse the vote kick system. A vote ban system is a terrible idea.

Ok, I'll do the one, "defend tribunal against the people who don't get how it works post."

94% of the people get voted guilty because it takes multiple reports to get to the tribunal, and so they tend to be guilty. The lowest number of games I've ever seen on someone I've judged is 3, highest was 10. On all of those players with 3 games, they had multiple reports per game, not just one asshole.
The system has a built in time before one can vote, (it's a short one minute), but you have nothing better to do but than to read some of the chatlog, look at info, etc, while waiting.
Furthermore, if you consistently vote against the majority (meaning if you keep hitting guilty on those 6% of pardons, or alternatively pardon everything) your vote counts for less and less, until the system locks you out of doing tribunal.
The people judging Never get a game they were in, so it's much harder to punish someone you don't like, because your odds of getting a random case that is someone you know are extremely slim. It also takes a large majority of punishes to get someone punished. One judge does not have the power to punish, or to choose the punishment type.

94% of cases are judged guilty. The first time punishment for nearly everything is a warning. The warning system is automated. First offense is not a ban. (LeaverBuster isn't tribunal and is automated) With a 50% no-repeat of first time warnings, the case load of GM's is less than half what it would have been.

As for the reports themselves... it's difficult to "spin" them to make someone look bad. If you tell me they called you the N word repeatedly, and I read the chat log and they didn't, I ignore your report. Judges get access to the persons item build, the game length, their kill/death/assist number, damage taken and dealt per second, and the entire chat log for the game by all players. And then they get it again for the next game with reports, and the next. In addition, many people in the chat log claim they will report someone, or ask for reports, or agree to report, and do not actually report, because someone isn't worth reporting, or they aren't that much of an ass.
And finally, while there is a report option for "unskilled player," no one with that report goes to tribunal. It exists to weed out reports made by assholes who think they can actually ban someone for sucking at the game. (which tribunal also makes very clear is not a bannable offense) The most common reason I pardon someone, is someone getting blamed for intentional feeding, when the real offense is doing poorly.