Guess nothing I release will be used at Google. Oh well, none of it is particularly good or relevant anyway. Funny though, because they are doing exactly the opposite as what the license allows them to do.
To understand it, all you need to do is understand that some folks take actions based on ideological beliefs, often to the exclusion of pragmatism, knowingly or not.
The technicalities of the law are very complicated. Tiny mistakes can render a license unusable or just invalid. So, the best advice I can give any author is to stick to one of the well-known license, as this makes it very likely that the software can be used by others.
You really don't understand that sometimes people act idealistically, often to the exclusion of pragmatism? What don't you understand about it?
Please consider that not everyone has the same life priorities as you.