2. I don't have budget to hire marketing company and crush them.
3. I believe it jealousy that's why they did it.
4. Hackernews should be more moderated. I can't comment on their post I don't know why.
5. The problem is just with hackernews. They posted an post on this site and one on twitter. I replied on twitter. But the hackernews results are rankling on Google. And I can't comment on it. I really need some advice
Good luck.
If you really care what the internet is saying about your business, you should be checking regularly. If you don't care about the internet (and I know several local businesses that don't), then its not a problem to bring up.
Yes hackernews should improve. Anyone can post anything anywhere. But they all allow the other person to clarify things and comment.
I do care about internet because my clients care. I lost a client because of this reason and he told me about it after I asked multiple questions.
As for 'check every site possible' - you should probably be checking the ones you care about on a regular basis. For instance, googling your company name (a 'vanity search'). HN is actually pretty small potatoes compared to FB, Twitter, Yelp!, etc. You might want to check those sites too. And I kid you not, there are companies will 'manage your online reputation' if you would prefer to just outsource it.
(Not intended as a comprehensive strategy, just one suggestion.)
It looks like a HN post is causing all the trouble. No doubt Dang will come to the rescue.
https://news.ycombinator.com/user?id=dang
That profile provides his contact email that no one seems to have listed in comments here.
I don't know if dang can help with this. I don't have sufficient info. But he's the person to talk to to find out what can be done on HN.
Anybody else know why someone wouldn't be able to reply to something specific, but able to post in general?