Yeah, that's about par for the course for IMDb. I used to post links to my blog over there on a semi-regular basis, and for a while people would actually respond nicely (i.e. "Hey, nice review" or whatever)... but within the last year or so such posts were being met with more open hostility (ala Homer Simpson: "Awwwww, you want me to READ something? In another browser window? Who's got that kind of TIME?") so eventually I just stopped bothering.
That was the exact issue I had: the dumb ass who called me a retard was obviously too lazy to click a mouse.