Earlier quoted context omitted.
It sounds like you have a lot more fear and assumption than experience here. In reality, crazy unfair downvote bombing is not even close to the norm here in my ~decade of experience. What makes you certain that someone with multiple accounts has downvoted you? Are you sure you weren’t just wrong and didn’t know it? I’ve been wrong in good faith and gotten fairly downvoted for it far, far more often than I’ve been unf…
Look, for what it's worth I agree. In my experience, HN is welcoming of my viewpoints. My karma is over 9000, so I'm not worried if a few comments get downvoted. But that still doesn't invalidate what GP was saying. They perceive a difficulty in contributing to the conversation because they're afraid of being downvoted. You're telling them not to worry and that they'll be fine ... but it's still a legitimate concern…
That whatever they said was legit unpopular is vastly more likely.