Exactly this. Science is supposed to be reproducible. Computer science is much more easily reproducible than many other disciplines and it is just sad that many papers don't publish their data/code to reinforce their conclusions.

I could understand Facebook/Google/BigCo. doing so when the data in question might be internal implementation/tech but the trend is far more prevalent.

Sharing experiment data/parameters would not only help people verify your results but also help students learning how to design and carry out experiments.