As a re-iteration on what Wheat said, everyone needs to keep in mind, just because you have freedom of speech (depending on where you live), doesn't mean you can walk into someone's house and start dropping f-bombs every 2 seconds. You will be kicked out and if you don't leave, you can be forced to leave because the owner that that house doesn't like what you're doing. Same thing here, yes you have freedom of speech BUT you are participating in a community run by a select few. This is THEIR house and it is THEIR choice on what you can or cannot say or do because THEY run the servers and administer THEIR community. You abide by their rules, not your own or what you perceive as your right.
As for abuse, since it came up, the ultimate decision is that of our staff members, not the players. Its their rule, they'll administer it as they see fit.