You know that feeling when you work on a feature for weeks or months and then something comes along and the feature is no longer needed or the project is cancelled?

It's a pretty frustrating experience -- was it all for naught? Maybe it's useful to vent about it a bit.

I assume because it turns out it was a actual bullshit job, and they were probably proud of what they had achieved. They probably trusted and may have even got on well with their boss.