My 2 sats: Even though I completely understand whirlwind’s decision to not deal with people who lost their private keys, I feel like they should at least let the guy knows about this over email.
Something like “As explained on our terms before you sent the coins, we can’t help you if you lost your note’s private key. We are sorry, but there is nothing we can do. This is our last reply about this matter” is enough.
I agree, even it were a simple email from Whirlwind to to acknowledge receipt with a short message, it would look better on their part and to be fair that would be the minimum you could expect from a customer services department of any website. Also as can be seen using this case as an example, it would demonstrate they have responded rather than leave the sender not knowing if the email was received or not.
In your emails you're also stating things like 'ill qietly go away just pay me my 200$ back' and accusing us of 'farming engagement' with your situation, which is certainly not true and very upsetting to read.
Rightly or otherwise maybe part of the reason Whirlwind did not reply was because the content of the emails (which they received) had some rather ludicrous allegations and comments included.