Request: Fix RSS feed

From that Feed Validator page:
“This feed is valid, but may cause problems for some users. We recommend fixing these problems.”

The feed is valid; your “errors” are just suggestions from the Feed Validator folks. This is just to make sure that your feed plays nice will all the different formats and readers out there, but they’re not errors.

Your feed is completely valid, isn’t losing you any readers, and likely is causing no one trouble but yourself. “content:encode” works fine in most readers now and, for those that don’t, I believe the readers simply ignore that content.