Please take down or close your post. If you spoke with others, I would hope that they did not suggest doing something like this.
I have surely been hostile to someone before. But this is a place that I spend a considerable amount of time, a place where I know folks with shared values, a place where there are folk I have broken bread with. I would be antagonized by seeing someone post something like this, especially someone that has limited amount of interaction on said site.
Secondly, this can be dealt with through simple search. Pltr is a veteran of the chipping community and this site. Ultimately, in thousands of interactions and deals, he has posted something cantakerous here or there. You're bound to run into someone you don't agree with or might possibly even describe as angry or hostile, it's the internet.
Either respond to him via PM, detailing that you find his comments unneeded, or block him. If you absolutely feel the need to go further than that, you have plenty of Mods you can report him to.
Please rethink this, and recognize that those in charge of the website have provided you with the proper tools to handle this situation.
Best of luck,
Jeff (Barrie)