It's interesting that after all my points, you decide to nitpick that one sentence where I didn't assume you weren't a customer, I stated the fact that you didn't contact them as a customer.

It's interesting because it's similar to how you decided to base your entire judgement of this company on encounter with customer support.

You can't just throw everything into bad or good bucket because of how it triggers you emotionally. I bet I quite annoyed you. Doesn't mean the best thing to do is just find that one sentence where I'm slightly wrong and judge me on that.

Try to emotionally detach. When a bug is pissing you off, do you throw the whole program with it? Or do you understand what's going on and what is there to learn, despite the annoying bug?

Do I have something to learn from this incredibly annoying person that embarrassed me on HN?

Or should I just find something to nitpick?

I'm not your enemy. Customer support isn't your enemy. And the security researcher coming to your company with some anoying bug bounty isn't an enemy either. There's that saying, Homo homini lupus. Don't be like that.