Why do all people who give abusive answers have bad grammar?
One reason could be that the part of the brain involved with having excellent “human skills” (the ability to understand oneself, others, and people in general) is also the part of the brain involved with having good verbal skills. Compassion, empathy, and respect for others are included in the “human skills”. The ability to feel empathy is also associated with people of very high intelligence. You may have some intelligent people who have “imperfections in emotional adjustedness” who give abusive answers, and you may have immature people who think such answers are funny. I pretty much think the above probably accounts for most of the abusive answers/poor grammar usage thing.
