I think there must be a happy medium somewhere. I hate surveillance ads as much as the next person and blatant, "pure" self-promotion is a pretty close second, but there are forms of advertising and self-promotion that are useful.

There was a magazine I subscribed to called "Small Craft Advisor" that covered the small boat market, frequently homebuilt, mostly sailing, mostly cruising (like camping, but from or on a boat). The main reason I maintained the subscription was for the ads and the articles written by various suppliers describing how to use their products and showcasing their offerings in detail. Now that they've gone Substack, those ads and most of the "vendor articles" are gone and I'm dropping the subscription. It just doesn't provide my window into the hobby, its supplies and techniques, and suppliers that it used to.

I also remember when there was such a thing as computer magazines that were similar in format and similarly valuable.