How does the 'Report' System Work?

I'd say I am in global for probably about a half hour a day, just chatting about mindless small talk with strangers, not recruiting or picking fights, and I have never been banned.
Generally I am Gold 1, but I swing into the Crystal 1 or Master 3 range on occasion, and still no banning.
Which makes me ask, regardless of why a player was reported,

how many reports does it take to be banned?

Thanks for the insight all, I'll cya soon in global, look for the creatively named guy, "Chris" ;)

-Chris

It takes 7 reports in 24 hours to be banned.

How does the report system work? It doesn't work at all, the global chat is a joke with the current reporting system your better off to stick to the forums.