Do you think making a list of every company that has ever advertised to you so that you can hold it up to yourself when making a purchase decision and only buy from their competitors, makes sense and would be worth your time?
Absolutely not. I loathe ads with every fiber of my being, and I could not think of anything that would be a bigger waste of time. You're also getting ads from the advertising competitors. Several store brands are just name brands in a suit. We're so bombarded with ads, that it's impossible to track them or know when something is an ad. Can you tell when a product listicle is based on genuine feedback and when it's a sponsored post? Now, if you have a moral or ethical concern about the company then it totally makes sense to make a list. But not for seeing ads.