There’s also a lot of people that think the world owes them something. Why do they owe you a response? OP agreed to do an assignment did but did they get the company to agree to call them back on a set date? A good job is like a hot girl they don’t have time to text back all the rejects
There is an implied social relationship here. They are asking for a considerable amount of work, so they should have the courtesy to respond. Something as simple as saying that they received and considered the work but they are not moving forward with the application. If they cannot say anything further, they can make it clear that company policy does not allow them to comment on applications so no further communications will be reviewed.
But not everyone is courteous. So instead of writing an emotional post a frustration every time it happens you should just accept human nature and move on without wasting time and dwelling on the past
Nobody is owed a response to the initial job application. After you've asked them to invest significant time doing something, you better believe you owe them a basic, "Thank you for your submission; we've decided not to move forward &c".
People get frustrated by ghosting because they spend all this time wondering the cause when it’s very simple. They can’t come to the simple truth that they weren’t good enough compared to other options
OP spent 6 hours of his time on an assignment requested by the company. This goes beyond basic human decency, so he is OWED that someone puts 2 minutes of their time and sends a short e-mail.
Asking someone to do so much work for you and dismiss them is a dick move in any culture.
> A good job is like a hot girl they don’t have time to text back all the rejects
"Not texting back" would be the equivalent of a company simply not following up after you'd submitted your resume; I'm sure OP wouldn't have complained about that. This is more like, the girl texts you back, said, "I'll consider going on a date with you if you do this 8-hour thing for me", you did the 8-hour thing, and then she didn't contact you after that -- yes, that's basic failure of decency.
Otherwise I’d write to them and tell them that you have an issue. Chase a bit, presumably you don’t know the reason for the ghosting.
Having said that they could be ghosting you because they are assholes. There are unfortunately a lot of inconsiderate assholes in tech.