[kimixa]

Probably because the "default" (in the USA and all European states I've checked at least) is copyright protection - unless explicitly stated otherwise the original author has exclusive rights to reproduce or distribute the work.

That means that things with "no license" don't actually mean "you can do whatever you want" - but in fact "you can do realistically nothing".

So to actually let other people so much as look at it, you have to have some kind of license attached already. And then it can be easy to imply (in the eyes of the law) things like "fitness for purpose" or some kind of warrenty unless expicitly denied.

Honestly it's really annoying to find things like code on the internet with "no license" - that just means you can pretty much never even look at it. You could argue that isn't the "right" default, but the law is what the law is right now.