This is a side-effect of media selling advertising through brokers rather than direct, that these brokers then built tools to track impressions, clicks and sales attributions, and then created a disparity between each level of several orders of magnitude.
When advertisers were paying an order of magnitude more for ad impressions, we needed far fewer ads and those ads tended both to be of higher quality and more topically relevant.
At the current CPM, I routinely get ads which aren't spelling or grammar-checked.
This is a side-effect of media selling advertising through brokers rather than direct, that these brokers then built tools to track impressions, clicks and sales attributions, and then created a disparity between each level of several orders of magnitude.
When advertisers were paying an order of magnitude more for ad impressions, we needed far fewer ads and those ads tended both to be of higher quality and more topically relevant.
At the current CPM, I routinely get ads which aren't spelling or grammar-checked.