I have a (mental) list
Any advert that pushes its way onto my browser, either by having itself excluded following exchange of money or just by being spammier than my ad blocker knows about, is liable to go onto my mental list of companies to stick at the bottom end of my shopping list.
Like a lot of Reg readers, I am asked for opinions by random people. Without even thinking about it, I will be less likely to recommend products or services that make the WWW a less pleasant place.
Biting the hand that feeds IT
