I'd be a fool to turn it on as government advice says not to use it.
Since when does the government give out good advice? Do you hear them telling people not to use IE? My site will appear broken to those with js off. Not terribly broken, but they will likely get a .css file designed for a different screen resolution. That doesn't bother me, they made their choice. The majority of Norton users DID NOT make the choice to surf without ads. They don't even know they are doing it. Very few of those that do use it knowingly appreciate what they are doing. I hate adblockers and what they stand for. But if you block those with adblockers, you will eventually block people you wish you hadn't