RSS feeds are missing images

RSS feeds are missing images. E.g. article Your Certificate Renewed. Your Gateway Didn't Notice. | Microsoft Community Hub

In the RSS feed, you have this:

…
<H1>What is actually happening</H1>
…
<img><EM>Figure 1. What validation expects to find, and what it finds when something sits in front.</EM></img>
<H1>Why it takes so long to notice</H1>
…

There's no src attribute and the image does not render. This often makes the feed virtually useless.