We need to feed our little servers...
This system cost us a lot of sleepless nights, some reward would be nice... donate ?
Short version... It cost us money and time to make, and keep costing us maintaining it....
The longer version:
We believe this can be a useful tool for you, and anybody who worked on something or worked, can agree that nothing is free in this world, not really. We also need to pay bills and eat. Developing custom application from hardware to web although fun, can be time consuming and stressful. System is in place now, but still it costs money to maintain...