Some companies do stuff like that. I remember Relic entertainment's list of banned words for Dawn of War II (I think) was leaked. It was hilarious in it's length and content.
EDIT: It was actually Space Marine. And here is the list
For obvious reasons, nsfw...although that entirely depends on where you work.
And another 3v3 map which is just a straight bridge, but has different rules such as no item buying after you leave the nexus until you die, and the nexus won't heal you.
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