Digg Reader appears to be handling <abbr> elements incorrectly, coercing them into <a> elements. For this post it’s showing a link starting with “ESL” and continuing through the next paragraph until the next actual <a>.

Looking at the HTML in Digg Reader, it’s showing:
<a target="_blank" bbr="" title="English as a Second Language">

My Atom feed is https://gregorlove.com/articles.atom and the post in question appears there as of this writing.