There is an issue here beyond gameplay, folks.
Don't forget that we live in very litigious times. You need a potty-mouth filter because we have kids playing this game. Anyone who's been to a Con' knows we all swear like there's no tomorrow in person. But the last thing HTC needs is angry letters from parent's lawyers saying "My little Billy now plays with inflatable goats because of what he heard on AH." Or something like that.
By the same token, HTC also does not need someone calling a lawyer on them because they felt that the game and the company condoned, fostered, or approved of things like the Holocaust. Or Apartheid. Or that the game is in some way excluding a certain minority because of its tone of racism.
Back in Ye Olde Air Warrior daze, folks would occasionally show up with handles like "Adolf Hitler" and rant away for a night. But a night is all they got. Banned for life within 24 hours. Hell, I got banned for the nonsense word "waffledick" once.
So even if you put aside how pathetically small making "deathcamp" jokes makes the teller look, the bottom line is that HTC needs to protect themselves. Those blessed with muting power should be mature enough to use it wisely.
And, FWIW, anyone here who thinks that genocide falls into the grey area of public taste - being only inappropriate in the eyes of those related to the expunged - needs a serious, serious reality check.
-DoK