I do think 'this' is more because of social media taking off and because there's been a sea of change about the RF
People have always done 'this' and always will. I have referenced the recent book 'Sapiens' numerous times, which explains that humans need to ''gossip' for survival. It is, literally, a survival mechanism.
We are the only species to have language (others communicate, but we are the only ones with spoken and written language). Therefore, what is said is of key importance to us. 'Language' can't be 'shut down'. Picking apart who does what to and with whom are crucial in aiding our understanding of our world. This means that all 'sides' relating to an issue need to be discussed - not just one side, all sides. 'This' can't be stopped (naturally...).