Well, the author worked hard for this and now, that LunaAVR got the deserved attention, he must get his reward. Nothing wrong with this. Especially that the price is right for a professional with a lot of contracts.
What it remains for us, the "freeloaders"? A full featured LunaAVR, without restrictions for anything non-commercial. And that is still amazing in a world where all other commercial compilers/languages have ridiculous restrictions for non-commercial zone.
I still have the old stable version with a permissive license, but that means almost nothing, as I always want the latest, full featured version of LunaAVR. Guys, even in this form, I really believe that is worth to download it, as long as there are still no limitations.