Personal means actually NAMING a person and referring to them in a way that provokes a defense on their part to a perceived insult.
A general statement such as "the Rich" or "the Poor" or "Democrats" or "Republicans" is quite different from a statement about "Joe", "Mary", "Jose" or
"Abu" that places them in a disparaging context.
An "unwelcomed" statement directed toward person A by person B is made. AS PERCEIVED by person A, these statements are intimidating, hostile or offensive. This is harrassment.
If those statements are sexual in nature it is sexual harrassment. If the statements are about, family, finances, character or reputation instead--it remains harrassment.
Today the common term is "CYBER-BULLYING". The use of the Internet or text messages to start rumors, defamation or reveal personal information about specific persons by name is harrassment.
It is a hostile act to call people out. It tampers with their privacy and their right to pursuit of happiness in the Constitutional sense. This is why laws are being enacted and enforced.
It is bad manners, anti-social and immature behavior.
The continued use of language, opinions, references and inuendo specifically by naming people and ridiculing them, devaluing them and baiting them for follow up attacks is so much a part of Political in-fighting it has invaded TV, Radio, Newpapers and conversation.
Can any of us say this is making a Better World?
We can't prevent others from rot gut conversation, but, we can personally refrain from our own use of this bad behavior.