It’s full of post_content…
My site has been plagued by odd characters in some of my old posts for a rather long time. The most common is the seemingly random appearance of  characters in the midst of some of my posts.
I know the basic cause: one of my WordPress / MySQL updates in ancient times (circa 2008) ended up producing a character set mismatch. I long ago fixed the cause, but all the existing bad characters persisted. Until today… I hope