This seems to have been rolled out without proper localizations.
For example, on the Portuguese version of Stack Overflow we read this strange English intrusion:
Similarly, on the Spanish version of Stack Overflow we read that same English intrusion:
Could we please get these translated properly on all the sites that have a native UI?
(The word “curate” there in the middle of it actually means something in those two languages, which threw me off a little. I kept thinking of how ¡Cúrate a ti mismo! is Spanish for the old adage of Physician, heal thyself.)