I know that it sounds exactly as a scam but it isn't, believe me.
Plimus (a software reseller) added a new policy that force its software vendors to offer "30 days money back guaranty; no question asked"! Buy any software application listed on Plimus Store and then place a refund request and you will instantly get money back. The vendors are forced to comply. You don't have to provide a reason, so you don't have to invent one. Therefore, this is it totally legal!
You want to do amateur or power-level computing? Then there is no other choice than Windows! Period. As a Windows user you don't have to spend tons of a money for a Mac PC (sorry Mac guys but Mac is nothing else than an expensive PC now) and you don't have to waste time on forums to learn how install stuff. All that Linux/Mac can offer you can get on Windows and get is better. I spent many years working with Linux but it was always only my second choice. Sorry Linux friends, but I said it.