Any media spread hate against other groups/spread lies. Or you have even read any newspaper in the past 100 years. I read reddit and i read the worst things about adversarial groups any day. Sometime even war crimes apologies, a post was so terrible that could be used as a war crimes proff ( a drone targeting and killing a medical unit doing their work during wartime ). But it is very rare that this kind of speech cause some riots. Ex: never heard of democrats targeting republicans with riots in USA. The strange thing is that russians tell that usa and uk are using the social to promote colored revolutions ( and is x is between them ). So X is an instrument of CIA / MI5 or a russian asset? When the troubles erupted were more simple time.