is big brother blizz watching

i heard a rumor that blizz is cracking down more seriously on trolls, online hatred and non-pc terms used in game, etc.? is this true? i heard that there was some announcement about it and people were getting banned (3 days, etc.) due to it. even for mentioning political things. help clarify?

if true, i think it's great that toxic behavior will be called out and reprimanded. the toxicity in alliance pvp has reached new lows for example. but if the other stuff is also true, about getting silenced for even discussing things like politics, might be a little extreme?