Re: "especially from an engagement and marketing perspective"
re: search engines don't work any more.
Well, they work, but at least google search has been completely owned. If I search for an obscure CentOS error message, I can guarantee that 80% of the search results, starting from the first entry after the ads, will be malware who used a filter to provide google's searchbot with a different page than the rest of the internet. Fortunately, I run Firefox with NoScript on Linux so all I get is a blank page.