My latest example of this was a memory leak in some old software I wrote. It grew linearly with traffic, so it wasn't until traffic randomly spiked that I started seeing problems.
This is linux_gaming, any recommendation of Bluetooth headsets needs to account for latency. There's huge variance between models and the headset is only half of the equation, the transmitting Bluetooth device can have a big impact on the latency too.
I'd expect the performance to be awful but it still has relatively niche usecases, especially where performance isn't a concern. I'm imagining legacy apps that don't speak S3.
Breaking adblock even for one day likely pays the salary for several people. They would not be doing it if it didn't pay.
You may think it's demotivating work, but there's a breed of engineers that lives for adversarial stuff like this.