Blade and Soul Lets you ban others using Report Spam.

Veexer_Nui

Many autobans for these thing are the result of players reporting other players for spamming.
Because the community was very strong in voicing their displeasure at seeing all the gold spam that happened in the game, we enacted a lot of measures that would help us keep on top of it. Being falsely flagged as spamming through player reports is an unfortunate side effect.
Some players have legitimately spammed their "WTB XXXX" messages over and over and deserve to be reported with a temp ban because that shit is annoying and it is spamming. It's not RMT but it is spamming and it does affect the player experience as much as gold spam does. 

Posted by NC Elusive  http://www.bladeandsouldojo.com/topic/163428-wrongfully-bans-are-going-out-and-people-are-still-in-denial/page__st__20__p__966081#entry966081

I tested this ingame with 5 friends, it appears if 5 people report a person for spamming they instantly get banned from the game. Good job ncsoft.

holdenhamlet

They just updated that remark with:

"Also, to clarify: there is no insta-ban based entirely off player reports - the example I'm seeing is that 5 people all reported a player and then bam, the account is banned. That's not how it works. "

simsalabim77

Maybe this will clean up the shitstorm that is arena lobby chat. Every time I see someone being a total dick and whining about balance, I'm going to tell people to report him for spamming. 

filmoret

So you tested it and NCsoft says you are lying.  I wonder who's telling the truth here.