Why even bother??

I've recently been at war, with words, with an individual on another forum. I try to be positive and upbeat and this person just continues to brow beat me on any opinion I give. I don't understand what makes some people so bitter that they need to lash out at others. Maybe he's just a bitter individual or maybe I'm letting it bother me way too much. My guess is it's both. I suppose this is my way of letting it go as I don't plan on commenting directly to him any more.

My venting is done... I feel much better hehe.

Thanks for reading.