You weren't hellbanned, but you had violated the guidelines sufficiently to get enough downvotes to become subject to some of the same limitations. We've now banned this account for only posting uncivilly and unsubstantively.
HN rarely hellbans, and not in cases like this. I'm not a mod and I'm not speaking for them, but I'm pretty sure they usually warn first, and that they announce bans.
You haven't been banned. You have been i) heavily downvoted and ii) not upvoted.
