The closest thing I have to a rant is against people who hold irrational grudges (yeah, I know, as if there's any other kind
). Those who go out of their way to insult a specific person they hate, and get on that person's back for the slightest misdeed or mispost yet let everyone else get away with far worse things...that really pisses me off. Especially when the person with the grudge has authority and uses it as a battering ram/bully pulpit which can't be ignored.