Is it though? Ad networks get breached all the time and throw malware or scammer ads. It is for security and protection to keep the web safe it is one's duty to block ads. Case and point: The WSJ years ago had an article that talked about how ad blockers = theft with the CEO of a major tv network making the charge for people not be allowed to block. Only, for about a day, unless you viewed that article on with an ad blocker it was displaying malware laced ads. Thus, making the case that to be safe is about privacy, safety and security of the web and if those companies do not like it then find a safer way to show people things.