I absolutely agree that Linux is great and I genuinely hate Windows for number of reasons. The problem is that some people just have to use Windows. This might include me in a few days, because I'm in high school and we have to install Solidworks. I think that for these people, Windows Activation Scripts are a good option that is safe (like it's not a virus), is free (because I don't want to pay for OS that I'm forced to use for some reason) and is safe in the meaning that there is no way of legal consequences if you are an individual, AFAIK. Also the licenses from 3rd party websites are often stolen licenses and buying them is IMO worse than activating Windows using the scripts, since you are supporting scammers.