Well, then that's your problem. It's simple as that. I would have started this sentence with "I'm sorry to say, ....", but then I realized that would go against the point I'm trying to make. Hurting someone's feelings is allowed. Grow a thicker skin, and stop caring. It's really that simple.
Who cares, you don't know the person, you don't have to meet him, and yet, you choose to read his posts while you can easily ignore them at the click of a button! Why make yourself suffer for something that can only get worse if you give it more attention?

I'm usually quite polite on Bitcointalk, up to the point where the Cat and now others started calling me Switzerland. But I highly appreciate the freedom to not be polite if someone wants to. Your hurt feelings don't take away someone else's right to say what he wants.

TL;DR: click Ignore, click lock topic.