PC viruses are fairly easy to avoid and/or remove. It should be common knowledge to know that a vague advertisement saying "download here for free" without any description or hint of what it is should tell you something is not right. Also make sure to use Google Safebrowsing, Adblock/Noscript, and Malwarebytes. So don't tell me "My OS is better than Windows because it gets no viruses!" when in reality, it is very easy to avoid.