So, the changes are my fault, but the escapes are valid XML[1][2]. I'd recommend using a better reader. Both Google Reader and Mozilla Thunderbird work fine for me.
I like rawdog -- been using it for 10 years, creates a Web page that I can read on any device. But it's no longer active. Granted, the encoding seems valid, but why? Any harm in changing it back?
[1] http://www.w3.org/TR/2006/REC-xml11-20060816/#dt-escape
[2] http://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fnew...