The discussion got muddied because in this subthread, it morphed from "What if we made _all_ advertising illegal?" (original article's exact words) ... to gp's (imiric) less restrictive example of "acceptable" advertising such as "product catalogs".
So when the person crafting a reply is using the article author's absolutist position of no ads, the distinction doesn't matter.
If print media delivered to your door is considered "pull" because you have to open it, then i think so is instagram because you have to open the app.
If I open a product catalog, I do that to purposefully look at products.