Have you ever been blocked by an E seller here?

I was browsing through the ads over the weekend and on an item I clicked on, I saw the words "blocked". I have never ever done business with this person before. I did however call him out via private message that he was being very misleading in his ad for something he was selling. He gave me a snarky reply and that was the end of it, I didn’t press further. What do you make of it? I am quite annoyed as I have an impeccable record in the classifieds.