If I had to guess, they would be competing against Visual Studio mainly. So they may offer a discount if you were coming from a Visual Studio background. They may still offer you a discount but since the policy doesn’t list what IDE’s they would do so for it is hard to say.

This seems more focused on commercial license holders. here paying for your ide is not that uncommon, and also the amount of revenue to be gained is a lot higher. That being said I always found it a bit weird that jetbrains didnt make clion free for non commercial use as they did with pycharm/intelij.